Gus Engeling

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SOUTHEASTERN NATURALIST2003 2(3):347368

THE VASCULAR FLORA OF GUS ENGELING

WILDLIFE MANAGEMENT AREA,ANDERSON COUNTY, TEXAS

JASONR. SINGHURST1, JAMESC. CATHY2,3, DALEPROCHASKA2,

HAYDENHAUCKE2, GLENNC. KROH4, ANDWALTERC. HOLMES5

ABSTRACT - Field studies in the Gus Engeling Wildlife Management Area,

which consists of approximately 4465.5 ha (11,034.1 acres) of the Post Oak

Savannah of Anderson County, have resulted in an annotated checklist of the

vascular flora corroborating its remarkable species richness. A total of 930 taxa(excluding family names), belonging to 485 genera and 145 families are re-

corded. Asteraceae (124 species), Poaceae (114 species), Fabaceae (67 species),

and Cyperaceae (61 species) represented the largest families. Six Texas endemic

taxa occur on the site: Brazoria truncata var. pulcherrima (B. pulcherrima),

Hymenopappuscarrizoanus, Palafoxiareverchonii,Rhododonciliatus, Trades-

cantia humilis, and T. subacaulis. Within Texas, Zigadenusdensus is known

only from the study area. The area also has a large number of species that are

endemic to the West Gulf Coastal Plain and Carrizo Sands phytogeographic

distribution patterns. Eleven vegetation alliances occur on the property, with the

most notable being sand post oak-bluejack oak, white oak-southern red oak-postoak, and beakrush-pitcher plant alliances.

INTRODUCTION

The Post Oak Savannah (Gould 1962) comprises about 4,000,000 ha

of gently rolling to hilly lands that lie immediately west of the

Pineywoods (Timber belt). Some (Allred and Mitchell 1955, Dyksterhuis

1948) consider the vegetation of the area as part of the deciduous forest;

i.e., burned out forest that is presently regenerating. Others (Bruner 1931,

Rice and Penfound 1959, Weaver and Clements 1938) classify it as a trueprairie association, based upon the tall grass understory. The variance of

opinion is unquestionably related to the transitional nature of the vegeta-

tion from the true prairies to the west and the deciduous forest to the east.

Between 1950 and 1960, the State of Texas acquired approximately

4465.5 ha of the region, now known as Gus Engeling Wildlife Manage-

ment Area (GEWMA), about 29 km (18 miles) northwest of Palestine in

1Wildlife Diversity Program, Texas Parks & Wildlife Department, 3000 S. IH-35,

Suite100, Austin, TX 78704; [email protected]

Wildlife DivisionRegion III, Texas Parks & Wildlife Department, Tennessee Colony, TX 75861.3Current address - Texas A&M University, Texas Agricultural Experiment Station

Uvalde, 1619 Garner Field Road, Uvalde, TX 78801. 4Department of Biology, Texas

Christian University, Box 298930, 2618 Cockrell, Fort Worth, Texas TX 76109.5Department of Biology, Baylor University, Waco, TX 76798-7388.


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Southeastern Naturalist Vol. 2, No. 3348

Anderson County. The GEWMA serves as a land base for a Post Oak

Savannah ecological area to develop and manage natural habitats and

populations of indigenous plant and wildlife species, provide an area for

public hunting and for non-consumptive recreation, all in a mannercompatible with the resource. Today, the area is the largest intact state-

owned portion of the Post Oak Savannah and probably the most diverse in

plant species richness. The latter trait is apparently related to the presence

of two very well developed vegetation alliances, the beakrush-pitcher

plant bogs and white oak-southern red oak-post oak alliances, that are at

the western limits of their distribution. Also, located in the study area is

one of the best known examples of sand post oak-bluejack oak uplands in

Texas. Compared with much of Texas, the area has had minimal distur-

bance. This is due primarily to the poor quality of soils that are notsupportive of agriculture other than grazing. From the middle to late

1800s, most of the area was used as open range for cattle and hog grazing.

Small acreages, more suitable to agriculture, were planted mainly in

cotton. By the mid-1900s, the range was severely overgrazed. After

acquisition by the state, grazing was discontinued and the remaining

timber was left virtually untouched (Haucke and Prochaska 1998). Pres-

ently, GEWMA is considered to be one of the most natural examples of

pre-European settlement Post Oak Savannah in Texas.

MATERIALS AND METHODS

The checklist is largely based upon examination of specimens that

were collected between 1950 and 1997 and the majority of the collec-

tions are held in the GEWMA Herbarium (GEWMA). Another large

portion of the collections are housed at Baylor University Herbarium

(BAYLU). Additional records are based on specimens deposited at S.M.

Tracy Herbarium (TAES), Texas A&M University Department of Biol-

ogy Herbarium (TAMU), and University of Texas Herbarium (TEX-LL). The list was then augmented by collections between 1997 and

2002, of species expected to be present, but not yet vouchered. These

specimens are housed at BAYLU.

Sorensons index [IS = 2C/(A + B)] was used to compare floristic

similarity between GEWMA and Fort Boggy State Natural Area, an 835

ha (2062.5 acres) Post Oak Savannah located approximately 95 km south

of the study area. In the index, C is the number of shared taxa, A is the

number of taxa in sample one, while B is the number of taxa in sample two.

DESCRIPTION OF STUDY AREA

GEWMA is located within the subtropical humid region of the

Modified Marine Climate type, an area of east Texas characterized by

long hot summers and mild winters. Yearly average precipitation is


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J.R. Singhurst, et al.2003 349

about 104 cm, with maximum precipitation of about 13 cm in May and

minimum of about 5 cm in August. Average annual temperature is

approximately 20C. January is the coldest month with an average low

of 8C, while July and August are the warmest months with averagehighs of about 36C. The growing season is about 265 days, with the

frost free period extending from March to November. GEWMA is

geographically situated along the boundary between the Post Oak Sa-

vannah and Pineywoods ecoregions and has a rolling terrain with eleva-

tion ranging from 75.2 to152.4 m. The area is comprised of very fine

Queen City Sand on uplands in the western four fifths of the property on

the west side if Catfish Creek. Alluvium and fluviatile terrace deposits

form the bottom lands with primary and secondary levees along Catfish

Creek. Carbonaceous clay, silt, and ironstone of the Recklaw Formationform steep slopes on the east side of Catfish Creek in the upper two

thirds of the property. The Recklaw Formation also occurs on both sides

of Catfish Creek in the southeast corner of the study area (University of

Texas Bureau of Economic Geology-Palestine Sheet 1993). Soils are

classified in the Darco and Fuquay-Kirvin-Darco Association as deep

sandy and loamy on nearly level, gently sloping, to moderately steep

slopes on uplands (Coffee 1970).

PLANT ECOLOGY

Based on dominant species, landscape position, and soil water con-

tent, 11 vegetational alliances (National Vegetation Classification Sys-

tem 1997) are recognized. The name, location, and a short description of

each follow, with emphasis on major characteristic species.

Sand Post Oak-Bluejack Oak

The Sand Post Oak-Bluejack Oak Alliance encompasses xeric, broad

leaved forest on very well drained Pleistocene terraces on low, broad

ridges and tertiary formations on acidic sandy soils. The fairly open to

dense, but stunted Quercuscanopy is typically greater than 5 m high.

This alliance consists of approximately 1852.3 ha (4576.9 acres) and is

found mainly in the north half of GEWMA (Fig. 1). Dominant trees

include Quercusfalcata, Q. incana, Q. marilandica, and Q. stellata var.

margaretta. Other frequently occurring woody plants include

Vaccinium arboreum, Cornusflorida, Rhus copallina, Viburnum

rufidulum, Ilexvomitoria, Prunusgracilis, Juniperusvirginiana, Rhus

aromatica, Toxicodendron radicans, and Polygonella americana. Ex-

posed sands support foliose lichens (Cladoniasp.) and a variety of xeric

herbs, includingAristidadesmantha, Sporobolusjunceus, Sorghastrum

elliottii, Opuntiahumifusa, Cnidoscolustexanus, Selaginellaarenicola

ssp. riddellii, Talinum rugospermum, Coreopsis intermedia, Brazoria

truncatavar.pulcherrima, Polanisiaerosa,Loeflingiasquarrosa, Sene-


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cio ampullaceus, Rhododon ciliatus , Penstemon murrayanus,

Tetragonotheca ludoviciana, Tradescantia reverchonii, T. subacaulis,

Phacelia strictiflora , Streptanthus hyacinthoides, Paronychia

drummondii, Cyperus grayioides, Bulbostylis capillaris, Mirabilisalbida, Sedumnuttallianum, andMateleacynanchoides.

Little Bluestem-Indian Grass Alliance

The Little Bluestem-Indian grass alliance, which occurs on open

xeric sandhills, is dynamic and early successional in nature, fire depen-

Figure 1. A vicinity map showing Gus Engeling Wildlife Management Area

Vegetation Alliances (ESRI Inc. ArcView ver. 3.2).


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dent, and, due to lack of disturbance, has been decreasing in size.

Currently, these areas occupy approximately 178.3 ha (440.5 acres) and

are found on dry xeric sands mainly within the Sand Post Oak -Bluejack

Oak Alliance in the northern half of GEWMA (Fig. 1). The mostabundant species across the range of this alliance are Schizachyrium

scoparium, Sorghastrum nutans, Aristida desmantha, Sporobolus

junceus,Boutelouahirsuta, Stenarianigricans,Echinaceapallida, and

other graminoid and herbaceous vegetation commonly associated with

the Sand Post Oak-Bluejack Oak Alliance.

Post Oak-Blackjack Oak Alliance

The Post Oak-Blackjack Oak Alliance woodlands are predominately

limited to dry ridges, steeper slopes with southern exposure, and flat togently rolling uplands. These possess a variety of soil types all with the

common characteristic of an impermeable substratum. This alliance

occupies 655.6 ha (1620 acres) and occurs mainly in the southern half of

the property (Fig. 1). Woody plants that comprise this alliance include

Quercusfalcata, Q. incana, Q. marilandica, Q. nigra, Q. phellos, Q.

stellata var. stellata, Carya texana, Acer rubrum, Nyssa sylvatica,

Callicarpa americana, Cercis canadensis, Cornusflorida, Crataegus

crus-galli, C. marshallii, Diospyros virginiana, Fraxinus americana,

Juniperus virginiana, Prunus angustifolia, P. mexicana, P. serotina,Rhus copallina, Rubus riograndis, Sideroxylon lanuginosum,

Symphoricarpus orbiculatus, Ulmus alata, Vaccinium arboreum, and

Viburnum nudum. Herbaceous flora includes Chasmanthium laxum,

Elymusvirginicus,Eragrostissecundiflora, Commelinaerecta, Trades-

cantia hirsutiflora , Sanicula canadensis, Symphyotrichumpatens,

Podophyllumpeltatum, Arisaema dracontium, Erythronium albidum,

Hypericumdrummondii, Passifloralutea, and Geumcanadense.

White Oak-Southern Red Oak-Post Oak Alliance

The White Oak-Southern Red Oak-Post Oak Alliance occurs on

steep slopes dissected by a perennial spring fed creeks, all underlined by

ironstone. The area consists of 16.4 ha (40.6 acres) in the northeast

portion of the property (Fig. 1). This is the first report of this alliance in

Texas. It is also known from Ft. Boggy State Park in Leon County,

which has been sampled (Singhurst and Blair 1996), but never been

reported in literature.

The physiognomic feature that defines this alliance is the abundance

of exposed ironstone outcrops. These sites typically accumulate thick

leaf litter and duff layers and exhibit a diverse display of ferns species

such as Pleopeltispolypodioides var. michauxiana, Botrychium

virginianum, Aspleniumplatyneuron, and Woodsiaobtusa. Side slope

seeps, which support such plants asBoehmeriacylindricaand Onoclea

sensibilisare common.


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Woody plants that dominate include Quercus alba, Q. falcata, Q.

incana, Q. marilandica, Q. nigra, Q. stellatavar. stellata,Liquidambar

styraciflua, Nyssa sylvatica, Acer rubrum, Cornusflorida, Celtis

laevigata var. laevigata, Carya texana, Ilex vomitoria, Vacciniumarboreum, Viburnum rufidulum, Sassafras albidum, Callicarpa

americana, and Ulmus alata. Less common are Ampelopsis arborea,

Aralia spinosa, Berchemia scandens, Crataegus marshallii, Myrica

cerifera, Prunus mexicana, and P. serotina. Common graminoids in-

clude Bromuspubescens, Chasmanthium sessiliflorum, C. latifolium,

Panicum laxiflorum, P. sphaerocarpon, Oplismenushirtellus, Tridens

flavus, and Scleria triglomerata. Forbs include Antennariaparlinii,

Corollorhiza wisteriana, Geum canadense, Luzula bulbosa, Lactuca

serriola, Matalea gonocarpa, Oxalis violacea, Parietariapennsylvanica, Phryma leptostachya, Physalis angulata, Polygonum

virginianum, Pteridiumaquilinumvar.pseudocaudatum, Salvialyrata,

Solidago caesia, S. ulmifolia, Tradescantia hirsutiflora, Triadenum

walteri, Verbesinavirginica, and Vernoniabaldwinii.

Loblolly Pine-Southern Red Oak Alliance

The Loblolly Pine-Southern Red Oak Alliance occurs on nearly flat

to moderately sloping uplands that lie at the contact between the

Recklaw and Queen City Sand Formations. The area is rich in iron oreand has an impermeable layer that acts as a hard pan. At times these

areas hold water and an upland flatwood pine and oak dominated mix-

ture are displayed. This alliance is rather isolated in the central portion

of the property (Fig.1) and occupies 56.1 ha (138.6 acres). Dominant

woody plants include Pinustaeda, Quercusfalcata, Q. nigra,Liquidam-

barstyraciflua,Acerrubrum, andDiospyrosvirginiana.

Willow Oak-Water Oak Seasonally Flooded Forest Alliance

This seasonally flooded alliance includes 241.4 ha (569.6 acres) on

relatively flat lands bordering perennial waterways that drain into Cat-

fish Creek in the southern two-thirds of the property (Fig. 1). Dominant

woody plants include Quercus nigra, Q. phellos, Ulmus americana,

Betulanigra, Fraxinuspennsylvanica, and Ilexopaca. Chasmanthium

latifolium, Verbesinavirginica,Boehmeriacylindrica, and Commelina

virginicaare common herbaceous plants in this alliance.

Overcup Oak Seasonally Flooded Forest Alliance

The Overcup Oak Alliance is characterized by the presence of tem-

porary standing water during and after flood events and consists ofapproximately 275.4 ha (680.6 acres). It is found on heavy clay soils

along Catfish Creek bottom (Fig. 1). This alliance is similar to the

preceding one, differing largely in the dominance of Quercuslyrataand

absence ofBetulanigra.


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Loblolly Pine-Water Oak Temporarily Flooded Forest Alliance

The Loblolly Pine-Water Oak Temporarily Flooded Forest Alliance

consists of 10 ha (24.6 acres) that are in the floodplains adjacent to

Catfish Creek in the southern portion of the study area (Fig. 1). The areais subject to periodic flooding and is characterized by nearly pure stands

of Pinustaedaon the higher ridges. The lower, more flood prone areas

are characterized by Quercusnigra, Q. phellos, Carpinuscaroliniana,

Sabalminor, Celtislaevigatavar. laevigata,Nyssasylvatica, Fraxinus

pennsylvanica, and an occasional Pinus taeda. Herbaceous vegetation is

generally absent.

Planer Tree Seasonally Flooded Forest Alliance

Planer Tree Alliance consists of 47.4 ha (117.2 acres) of backswamps and sloughs mainly on the upper Catfish Creek corridor (Fig.

1). Common woody vegetation includes Planeraaquatica, Foresteria

acuminata, Carya aquatica, Cephalanthus occidentalis, Fraxinus

pennsylvanica, and Salix nigra. Characteristic herbaceous plants are

SaururuscernuusandBoehmeriacylindrica.

Beakrush-Pitcher Plant Alliance

The Beakrush-Pitcher Plant Alliance consists of a variety of herba-

ceous and woody plant bog assemblages that include hillside seepage

bogs, wet prairies, muck bogs, and fens. This alliance occurs mainly in

the north portion of the property (Fig. 1) and occupies 320 ha. (790.8

acres). The area is characterized by Rhynchosporaspp. and Sarracenia

alata. Prominent woody plants include Alnusserrulata, Viburnumnu-

dum,Nyssasylvatica,Acerrubrum, andMyricacerifera. Typical herba-

ceous plants are Eriocaulonspp., Pseudolycopodiella caroliniana, Os-

mundacinnamonea, O.regalis, Pogoniaophioglossoides, Plantanthera

ciliaris, Habenaria repens, Utricularia spp., Burmannia capitata,

Eryngiumintegrifolium,Asclepiasrubra, andXyrisspp.

Wild Rice Tidal Alliance

The Wild Rice Alliance generally occurs as marshes bordering the

larger waterways and is dominated byZizaniopsismiliacea. Other com-

mon species are Panicum virgatum, Rhynchospora corniculata, and

Peltandravirginica. This alliance occupies 11.3 ha (27.8 acres) is found

mainly in the northeast portion of the property (Fig. 1).

Although not a naturally occurring alliance, there are several artifi-

cially damned, impounded waters on the management area. Most no-

table are Lake 1, Lake 2, Lake 3, and Beaver Pond. All are spring-fed,maintain a relatively constant water level throughout the year, and are

less than 5 ha in area. The open waters are characterized by Nelumbo

lutea, Nymphaea odorata, Nuphur advena, Brasenia schreberi,

Potamogetonspp., Eleocharis vivipara, Lemnaspp., Wolffiaspp., and


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Utricularia spp.. Marginal areas are dominated by Typha latifolia,

Zizaniopsismiliacea, Juncuseffusus, Sagittariaspp., and Hydrocotyle

ranunculoides.

RESULTS

The GEWMA flora consists of 930 taxa (excluding family names) in

145 families and 485 genera. The largest families (with numbers of

species in parentheses) are Asteraceae (124), Poaceae (114), Fabaceae

(67) and Cyperaceae (61). Other families with significant numbers of

species include Euphorbiacae (26), Scrophulariaceae (22), Lamiaceae

(20), and Rosaceae (20). Genera with the largest number of species

include Carex(23), Panicum(16),Juncus(12), Quercus(12), Cyperus(10) and Symphyotrichum(10). Introduced species represent 6.34 % of

the flora (59).

The GEWMA flora includes 19.2 % of the species (930 of 4834)

reported in the state by Hatch et al. (1990), in an area of about 38.85

square kilometers compared to 696,710 square kilometers for the state.

For further comparison, the number of native species reported by Diggs

et al. (1999), in an area of 103,600 square kilometers, is 1829, while

GEWMA has 871 natives. This is 47.6 % as many species in an area less

than 0.04% as large. The low percentage of introduced species (6.34 %),compared to 17.7 % reported by Diggs et al. (1999) for the area treated

in their manual, evidences that GEWMA has been subjected to limited

disturbance and outside influences.

Nixon (1992) recorded a total of 685 species at Fort Boggy, with 53

species being introduced. GEWMA and Fort Boggy have 470 species in

common. The similarity index for the two areas is 0.582 which appears

low for areas in the same ecoregion. This low value could, in part, be

related to the larger study area at GEWMA, but is better attributed to the

presence of the beakrush-pitcher plant alliance at GEWMA, which doesnot occur at Fort Boggy. It is also indicative of the species richness of

the Post Oak Savannah.

DISCUSION

Eight species occurring at GEWMA are listed by Estill and Cruzan

(2001) as rare southeastern endemics. These are Astragalus

soxmaniorum, Brazoria truncata var. pulcherrima, Coreopsis

intermedia, Eriocaulon koernickianum, Palafoxia reverchonii,Rhododonciliatus, Tradescantiareverchonii and Yucca louisianensis.

All are very abundant in the area, with the exception of Coreopsis

intermedia, which is localized in sparsely vegetated areas, and

Eriocaulonkoernickianum, which is known only from Andrews Bog.


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Astragalus soxmaniorum, Coreopsis intermedia, Eriocaulon

koernickianum (also disjunct in Georgia), Tradescantia reverchonii,

and Yuccalouisianensisare part of the West Gulf Coastal Plain center of

endemism (or phytogeographic pattern, Sorrie and Weakley 2001).Other common to abundant taxa from GEWMA that are part of this

phytogeographic pattern are Amorpha paniculata, Echinacea

sanguinea, Panicum brachyanthum, Paronychia drummondii,

Pediomelumhypogaeavar. subulata, Penstemonmurrayanus, Phacelia

strictiflora, Polanisiaerosavar. erosa, Scutellariacardiophylla, Sene-

cio ampullaceus, Strepthanthus hyacinthoides, and Tetragonotheca

ludoviciana. Brazoria truncata var. pulcherrima, Hymenopappus

carrizoanus, andRhododonciliatus, all abundant on the study site, are

part of the Carrizo Sands center of endemism (Sorrie and Weakley2001). These three taxa, plus Palafoxiareverchonii, are also endemic to

Texas.Hymenopappusis designated as a globally imperiled and vulner-

able to extinction throughout its range (Poole et al. 2002). Palafoxia

reverchoniioccurs partly in the Carrizo Sands area, but is also known

from Houston, Nacogdoches, and Hardin counties, all to the east. Tra-

descantia humilis and T. subacaulis, both Texas endemics, are wide-

spread in the eastern third of the state and found throughout the study

area.

Other noteworthy taxa include the only documented occurrence ofZigadensisdensusfrom the state. This collection constitutes the west-

ern limits of its distribution. Talinum rugospermum and Cyperus

grayioides are both former candidates for threatened or endangered

listing with a G2S3 ranking, but have been removed from the plants of

concern list. Within Texas, Cladiummariscoidesis known only from

GEWMA and surrounding areas of Anderson County and nearby Koon

Creek Club in Henderson County, which is immediately north of

Anderson County. Taxodiumdistichumis apparently absent or rare in

most of the Post Oak Savannah. Other than the GEWMA record, the

only additional collection occurs in Caddo National Grassland

[Singhurst and White 9112 (BALYU)] in a spring fed creek hardwood

site in Fannin County in a portion of the Post Oak Savannah that

projects westward along the Red River. Symphyotrichumpuniceum

var. scabricaulisis a species of concern currently known from Ander-

son, Cherokee, Franklin, Henderson, Hopkins, Smith, Van Zandt and

Wood counties (also known from Louisiana and Mississippi).

Mentzelianuda, which is distributed in sandy areas in north and south

central to west Texas (Diggs et al. 1999), is present as a disjunct. The

nearest record of this taxa is from Dallas County, approximately 150

km to the northwest. The species also occurs in Henderson County,

just north of Anderson County [Holmes and Singhurst 12383 and

12387 (BAYLU)] and Freestone County, which is contiguous with


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Anderson County to the west [Orzell and Bridges 17224 (TEX)]. Other

than the Anderson County record cited in the checklist, Cirsium

muticum is presently known to occur in three other counties in the

state. These are Gonzales County, ca. 300 km to the southeast, andSmith and Woods counties, both just to the north. Didiplis diandra

rarely collected in Texas, is currently known from Bowie, Red River,

and Robertson counties.

In conclusion, most taxa restricted to acid bogs, such as Sarracenia

alata, Rhynchosporaspp., Eriocaulonspp., and Xyrisspp., reach their

northwestern most distribution in the state, hence in the southeastern

United States, in the bogs of GEWMA. This suggests that GEWMA may

represent the western limit of the southeastern flora at this latitude (31

58 N). West of GEWMA is the Blackland Prairie, which is part of theTrue Prairie grassland association (Gould and Shaw 1983).

ANNOTATED LIST OF VASCULAR PLANT TAXA

The annotated checklist generally follows the classification of

Correll and Johnston (1970). Pteridophyta, Gymnospermae, and

Angiospermae are placed in separate groups. The latter is further di-

vided into Monocotyledoneae and Dicotyledoneae. Family, genera, and

species are also alphabetized. Nomenclature follows Hatch et al. (1990),or, for names not included in that work, Jones et al. (1997). Voucher

specimens documenting the occurrence of the various taxa were col-

lected by a number of field workers, each of which is cited by the

following abbreviations: B&S = D.&M. Belk and D. Scurlock, B&K=

Edwin Bridges and Kelly Kindscher, B&O = Edwin Bridges and Steve

Orzell, CC = Carl Crozier, CMR = Chester M. Rowell, EDM = Earnie

Davis Marsh, GV = George Veteto, KL = Keith Lowe, JDC = J. D.

Calley, JHR = Julie Hogan Rose, JRM = J. R. Manhardt, JS = Jason

Singhurst, KF = Kay Fleming, LP = Lee Powell, MD = MoniqueDebrule, M&M = Michael MacRoberts and Barbara MacRoberts, O&B

= Steve Orzell and Edwin Bridges, RH = Ray Hart, RL = Ruth Loper, SJ

= Stanley Jones, and WCH = Walter C. Holmes.

Most voucher specimens are held in the GEWMA Herbarium

(GEWMA). All Singhurst, Holmes, and Fleming collections are housed

in Baylor University Herbarium (BAYLU), while the remaining collec-

tions are in S.M. Tracy Herbarium (TAES), Texas A&M University

Department of Biology Herbarium (TAMU), and University of Texas

Herbarium (TEX-LL).Taxa listed by the Texas Parks and Wildlife Departments Wildlife

Diversity Program Rare Plants of Texas list are indicated by a bracketed

[WDP]. Introduced plants are indicated by an asterisk (*).


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PTERIDOPHYTA (FERN & FERN ALLIES)

ASPLENIACEAEAsplenium platyneuron (L.) B.S.P. - CMR

16989

AZOLLACEAE

AzollacarolinianaWilld. - JS 7377

BLECHNACEAEWoodwardia areolata (L.) T. Moore - CMR

16986DENNSTAEDTIACEAE

Pteridium aquilinum (L.) Kuhn var.

pseudocaudatum(Clute) Heller - MD 1105DRYOPTERIDACEAE

At hyri um fi li x- fe mi na (L.) Roth var.asplenioides

(Michx.) Farw. - JS 7376OnocleasensibilisL. - GV s.n.

Woodsiaobtusa(Spreng.) Torr. - JS 7533

EQUISETACEAEEquisetumhyemaleL. ssp. affine(Engelm.) Eat.

- JS 7403LYCOPODIACEAE

Lycopodiella appressa (Chapman) Cranfill -MD 1327

Pseudolycopodiellacaroliniana(L.) Holub - JS7442

MARSILEACEAEMarsileavestitaHook & Grev. - JS 7443

OPHIOGLOSSACEAE

Botrychium biternatum (Savig) Underw. - JS7381

Botrychiumlunarioides(L.) Sw. - JS 7380

Botrychiumvirginianum(L.) Sw - JS 7378

Ophioglossum crotalophoroides Walt. - JS

7456OphioglossumvulgatumL. - WCH & JS 12113

OSMUNDACEAEOsmundacinnamoneaL. - MD 1100

Osmunda regalis L. var. spectabilis (Willd.)

Gray - CMR 16987POLYPODIACEAE

Pleopeltispolypodioides (L.) Andrews &

Windham var. michauxiana (Weath.)Andrews & Windham - JS 7479

SELAGINELLACEAE

Selaginellaapoda(L.) Spring - M&M 3775Selaginella arenicola L. ssp. riddellii (Van

Eselt.) Tyron - JS 7544THELYPTERIDACEAE

ThelypterispalustrisSchott - O&B 6590

GYMNOSPERMAE (PINES & RELATIVES)

CUPRESSACEAEJuniperusvirginianaL. - JS 7181

PINACEAE

PinusechinataMill. - JS 7191PinustaedaL. - JS 7190

TAXODIACEAE

Taxodiumdistichum(L.) Rich. - JS 7229

VASCULAR PLANT TAXA OF GUS ENGELING WILDLIFE MANAGEMENT AREA

ANGIOSPERMAE (FLOWERING PLANTS)

MONOCOTYLEDONEAE (MONOCOTS)

ACORACEAE

AcorusamericanusL. - JS 7356AGAVACEAE

Manfredavirginica(L.) Pers. - WCH 11811YuccalouisianensisTrel. - JS 7216

ALISMATACEAEEchinodorus cordifolius (L.) Griseb. ssp.

fluitans(Fassett) R. Haynes & L.B. Holm.-

Nielsen - JS 7540SagittarialatifoliaWilld. - EDM s.n.

Sagittariaplatyphylla (Engelm.) J. G. Smith -

JS 7496ARACEAE

Arisaemadracontium(L.) Schott - JS 7274

Arisaematriphyllum(L.) Schott ssp. triphyllum- CMR 16985

Peltandravirginica(L.) Schott & Endl. - CMR16984

ARECACEAESabalminor(Jacq.) Pers. - JS 7250

BROMELIACEAETillandsiausneoides(L.) L. - JS 7522

BURMANNIACEAEBurmanniacapitata(J.F. Gmel.) Mart. - JS 7384

COMMELINACEAE

CommelinaerectaL. - GV s.nCommelinavirginicaL. - JS 7394TradescantiahirsutifloraBush - MD 1073

TradescantiareverchoniiBush - B&K 13738

TradescantiasubacaulisBush - EDM 267

CYPERACEAEBulbostyliscapillaris(L.) Clarke - JS 7542

Bulbostylisciliatifolia(Ell.) Fern. - M&M 3446CarexalataTorr. - SJ 13560

Carex albolutescensSchwein. - CMR 17273

CarexatlanticaBailey - M&M 3841CarexcarolinianaSchwein. - EDM 216

CarexcherokeensisSchwein. - EDM 40

CarexcomplantaT. & G. - B&K 13723Carexcrus-corviKunze - JS 7389

CarexdavisiiSchwein. & Torr. - GV 213

CarexemoryiDewey - WCH & JS 12115CarexflaccospermaL. H. Dewey - CMR 17278

CarexfrankiiKunth - JRH & CMR 15CarexintumescensRudge - JMR 4

CarexjooriiBailey - GV 210CarexleavenworthiiDewey - EDM 31

Carex leptalea Wahl. ssp. harperi (Fernald)Weatherby & Griseb. - MD 1114

CarexlongiiMack. - B&K 13694CarexlouisianicaBailey - GV 215

CarexluridaWahl. - JRM 217

CarexoklahomensisMack. - SJ 13559CarexoxylepisTorr. & Hook. - MD 1116CarexretroflexaMuhl. ex Willd. - CMR 17272

CarexstrictaLam. - M&M 3813

CarexvulpinoideaMichx. - MD 1009Cladium mariscoides (Muhl.) Torr. - B&O

7690, M&M 3990; JS 7391


12/22


Cladium mariscus (L.) Pohl ssp. jamaicense

(Crantz) Kukenth. - M&M 3993

CyperuserythrorhizosMuhl. - JS 7397

CyperusesculentusL. - EDM 220

CyperusgrayioidesMohlenb. - B&O 7981CyperushaspanL. - EDM 221CyperushystricinusFern. - EDM 314

CyperusodoratusL. - M&M 3690

CyperusplukenetiiFern. - MD 1346CyperusretroflexusBuckl. - EDM 223

CyperusretrorsusChapm. - GV 226CyperusvirensMichx. - GV 225

Eleocharisequisetoides(Ell.) Torr. - JS 7549

EleocharisolivaceaTorr. - M&M 3708

Eleocharisquadrangulata(Michx.) Roemer &J.A.Schultz - O&B 7958

Eleocharistortilis(Link) Schult. - B&K 13719Eleocharis vivipara Link - WCH & JS 12382

Fimbristylisautumnalis(L.) Roem. & Schult. -JS 7408

Fimbristylisvahlii(Lam.) Link - JS 7409FuirenasquarrosaMichx. - EDM 233

Isolepis carinata Hook & Arn. ex Torr. - JS7504

Isolepismolesta(Johnston) Smith - SJ 13561RhynchosporacaducaEll. - O&B 7971

RhynchosporacephalanthaGray - M&M 3561Rhynchospora chalarocephalaFern. & Gale -

B&O 7972

Rhynchosporacorniculata(Lam.) Gray - EDM

260

Rhynchospora globularis (Chapm.) Small -EDM 257Rhynchosporaglomerata(L.) Vahl - EDM 260

RhynchosporagracilentaGray - B&O 7183

RhynchosporaoliganthaGray - B&K 13720Rhynchospora rariflora (Michx.) Ell. - B&O

7191Rhynchospora scirpoides (Torr.) Gray - JS

11400

RhynchosporastenophyllaChapm. ex M. Curtis

- B&O 7954Scirpuscyperinus(L.) Kunth - MD 1277

ScleriareticularisMichx. var.pubescensBritt.- B&O 7964

ScleriatriglomerataMichx. - JS 7505DIOSCOREACEAE

Dioscorea quaternata (Walt.) J.F. Gmel. - JS7399

ERIOCAULACEAEEriocaulon decangulareL. - EDM 230

Eriocaulon koernickianum Van Heurck &Muell. Arg. - B& K 13698

Eriocaulon texenseKorn. - B&O 6593HYDROCHARITACEAE

EgeriadensaPlanch. - JS 7402

IRIDACEAEAlophia drummondii (Graham) Foster - EDM

379Herbertialahue(Mol.) Goldblatt ssp. caerulea(Herb.) Goldblatt - GV s.n.

IrishexagonaWalt. var.flexicaulis(Small) Fos-

ter - MD 1070IrisvirginicaL. - M&M 3821

NemastylisgeminifloraNutt. - EDM 44SisyrinchiumalbidumRaf. - EDM 12

SisyrnchiumcampestreBicknell - MD 1097

SisyrnchiumlangloisiiGreene - EDM 44

SisyrnchiumrosulatumBicknell - JS 7511SisyrinchiumsagittiferumBicknell - JS 7512

JUNCACEAEJuncus bufoniusL. - EDM 242JuncuscapitatusWeigel - JS 7431

JuncuscoriaceusMack. - MD 1293

JuncusdiffusissimusBuckl. - JHR 14JuncuseffususL. var. solutusFern. & Wieg. -

EDM 244JuncusinteriorWieg. - EDM 241

Juncus marginatus Rostk. var. setosus Cov. -

GV 247

JuncusrepensMichx. - GV 246JuncusscirpoidesLam. - EDM 178

JuncustorreyiCov. - JHR 23JuncustrigonocarpusSteud. - MD 1358

JuncusvalidusCov. - EDM 179Luzula bulbosa (Wood) Smyth & Smyth - JS

7434LEMNACEAE

LemnaminutaKunth - WCH 11323Lemnaobscura(Austin) Daubs - WCH 11804

Spirodelapolyrhiza(L.) Schleid. - WCH 11803WolffiabrasiliensisWedd. - WCH 11807

WolffiacolumbianaH. Karst - WCH 11824LILIACEAE

AlliumcanadenseL. var. canadense- JS 7541

AlliumdrummondiiRegel - EDM 378CooperiadrummondiiHerb. - JS 7395

CrinumamericanumL. - JS 7554ErythroniumalbidumNutt. - JS 7405Hymenocallis eulae Shinners - WCH & JS

12360

Hymenocallisliriosme(Raf.) Shinners - JS 7423Hypoxishirsuta(L.) Cov. - EDM 40

MelanthiumvirginicumL. - DJC & EDM 30*MuscarineglectumGuss ex Ten. - JS 7447

*NarcissusjonquillaL. - JS 7451Nothoscordumbivalve(L.) Britt. - EDM 38, 37

Zigadenus densus(Desr.) Fern. - M&M 3820MARANTACEAE

ThaliadealbataFraser ex Roscoe - JS 7521MAYACACEAE

MayacafluviatilisAubl. - CMR 17279ORCHIDACEAE

Calopogontuberosus(L.) B.S.P. - M&M 3974CorallorhizawisterianaConrad - JS 7553

HabenariarepensNutt. - JS 7552

Plantantheraciliaris(L.) Lindley - CMR 17966

Pogoniaophioglossoides(L.) Juss. - JS 7537Spiranthescernua(L.) Rich. - MD 1331

Spiranthes lacera (Raf.) Raf. var. gracilis(Bigel.) Luer. - EDM 50

Spirantheslaciniata(Small.) Ames. - JS 7548

POACEAEAgrostishyemalis(Walt.) B.S.P. - M&M 3974

Agrostisperennans(Walt.) Tuck. - M&M 3974AgrostisscabraWilld. - M&M 3697*AiracaryophylleaL. var. capillarisA. Mutel -

GV 1

AlopecuruscarolinianusWalt. - JS 7219Andropogon glomeratus (Walt.) B.S.P. - JS

7223Andropogon ternariusMichx. - GV s.n.


13/22


Andropogon virginicusL. - GV 6

AristidadesmanthaTrin. & Rupr. - MD 1312

AristidalanosaMuhl. ex Ell. - O&B 8634

AristidalongespicaPoir. - EDM s.n.

AristidaoliganthaMichx. - EDM s.n.AristidapurpurescensPoir. - GV s.n.Arundinariagigantea(Walt.) Muhl. - JS 7193

*AvenasativaL. - WCH & JS 12123

Axonopuscompressus(Sw.) Beauv. - EDM 287*Bothriochl oa ischaemum (L.) Keng var.

songarica(Fisch. & Mey.) Celariar & Harlan- JS 7220

Bothriochloalaguroides(DC.) Herter - JS 7224

BoutelouahirsutaLag. - GV 18

Brachiariatexana(Buckl.) S. T. Blake - EDM44

*BrizaminorL. - JS 7221*BromuscatharticusVahl - WCH & JS 12133

*BromusjaponicusThunb ex Murray - WCH &JS 12138

BromuspubescensMuhl. ex Willd. - JS 7227*BromustectorumL. - EDM 20

CenchrusspinifexCana. - EDM 134Chasmanthiumlatfolium(Michx.) Yates - EDM

17Chasmanthiumlaxum(L.) Yates - WCH 11859

Chasmanthiumsessiliflorum(Poir.) Yates - GV24

ChlorisverticillataNutt. - JS 7258

CinnaarundinaceaL. - M&M 3583-B

Coelorachis cylindrica (Michx.) Nash - B&K

13736Coelorachisrugosa(Nutt.) Nash - M&M 3681*Cynodondactylon(L.) Pers. - JS 7222

*Digitariacognata(Schult.) Pilger - EDM 73

*Digitariafili formis(L.) Koel. - EDM 40*Digitariasanguinalis(L.) Scop. - EDM 42

Echinochloacrusgallii(L.) Beauv. - EDM 44Echinochloawalteri(Pursh) Heller - JS 7259*Eleusineindica(L.) Gaertn. - JS 7260

ElymuscanadensisL. - JS s.n.

ElymusvirginicusL. - EDM 45Eragrostiscapillaris(L.) Nees - GV 49

Eragrostiscilianensis(All.) Janchen - JS 7261EragrostiscurtipedicellataBuckl. - EDM 21

Eragrostishypnoides(Lam.) B.S.P. - GV 48Eragrostispilosa(L.) Beauv. - GV 58

Eragrosti s secundiflora Presl ssp. oxylepis(Torr.) S.D. Koch. - EDM 51

Eragrostisspectabilis(Pursh) Steud. - EDM 63Eragrostistrichoides(Nutt.) Wood - GV 60

Gymnopogonambiguus(Michx.) B.S.P. - EDM70

*HordeumpusillumNutt. - JS 7262LeersiahexandraSw. - EDM 91

LeersialenticularisMichx. - MD 1279

Leersia oryzoides (L.) Sw. - M&M 3693; JS7263

LeersiavirginicaWilld. - GV 72*LoliumperenneL. - JS 7264MelicamuticaWalt. - JS 7264

MuhlenbergiaschreberiGmel. - GV 74

Oplismenushirtellus(L.) Beauv. - GV 75Panicum aciculare Desv. ex Poir. var.

angustifolium(Elliott) Wipff & Jones - GV35

PanicumacuminatumSw. - EDM 203

PanicumancepsMichx. - EDM 104

PanicumbrachyanthumSteud. - EDM 93PanicumdichotomumL. - EDM 96

Panicumgymnocarpon Ell. - EDM 95PanicumhiansEll. - EDM 97PanicumhemitomonSchult. - EDM 107

PanicumlaxiflorumLam. - GV 34

PanicumnodatumHitchc. & Chase - JS 5366PanicumoligosanthesSchult. - GV 30

PanicumrigidulumNees - GV 100PanicumscabriusculumEll. - M&M 3816, 3711

PanicumscopariumLam. - EDM 269

PanicumverrucosumMuhl. - M&M 3673

PanicumvirgatumL. - JS 7266*PaspalumdilatatumPoir. - JS 7267

PaspalumfloridanumMichx. - EDM 115PaspalumlaeveMichx. - EDM 113

*PaspalumnotatumFlugge. - JS 7268PaspalumplicatulumMichx. - M&M 3582

PaspalumpraecoxWalt. - M&M 3678PaspalumsetaceumMichx. - GV 108

*PaspalumurvilleiSteud. - GV 114PhalariscarolinianaWalt. - JS 7269

Piptochaetiumavenaceum(L.) Parodi - JS 7217*PoaannuaL. - JS 7218

Saccharumalopecuroides(L.) Nutt. - GV 66Saccharumgiganteum(Walt.) Pers. - EDM 65

SaccharumbaldwiniiSpreng. - EDM 64

Sacciolepisstriata(L.) Nash - MD 1276Schizachyrium scoparium (Michx.) Nash - JS

7270Setariaparviflora(Poir.) Kerguelen - EDM 79Sorghastrumelliottii(Mohr) Nash - JS 7271

Sorghastrumnutans(L.) Nash - EDM 80, 82

*Sorghumhalepense(L.) Pers. - JS 7272Sphenopholisobtusata(Michx.) Scribn. - EDM

83, 84Sporobolus compositus (Poir.) Merr. var.

clandestinus(Biehler) J. Wipff & S. D. Jones- EDM 131

Sporoboluscompositus(Poir.) Merr. - GV 126Sporobolus cryptandrus (Torr.) Gray - EDM

125*Sporobolusindicus(L.) R. Br. - EDM 127

Sporobolusjunceus(Michx.) Kunth - GVM 124Sporoboluspyramidatus(Lam.) A.S. Hitchc. -

EDM 128Sporobolusvaginiflorus(T. & G.) Torr. - EDM

129*Stenotaphrumsecundatum (Walt.) O. Ktze. -

JS 7273Tridenseragrostoides(Vasey & Scribn.) Nash -

EDM 85Tridensflavus(L.) A.S. Hitchc. - EDM 86

Tridensstrictus(Nutt.) Nash. - EDM 88

Triplasispurpurea(Walt.) Chapm. - GV89Tripsacumdactyloides(L.) L. - JS 7274

TriticumaestivumL. - WCH & JS 12127Vulpiaoctoflora(Walt.) Rydb. - EDM 68Vulpiasciurea(Nutt.) Henr. - EDM 67

Zizaniopsismiliacea(Michx.) Doell & Aschers.

- EDM 92PONTEDERIACEAE

Heterantheradubia(Jacq.) MacM. - JRH 13PontederiacordataL. - JS 7480


14/22


POTAMOGETONACEAE

PotamogetondiversifoliusRaf. - JS 7483

PotamogetonfoliosusRaf. - WCH & JS 12338

PotamogetonnodosusPoir. - JS 7484

SMILACACEAESmilaxbona-noxL. - EDM 63SmilaxglaucaWalt. - EDM 319

SmilaxlaurifoliaL. - JS 7215

SmilaxrotundifoliaL. - MD 1082SmilaxsmalliiMorong - JS 7225

SmilaxtamnoidesL. - JS 7253SPARGAGINACAE

SparganiumamericanumNutt. - EDM 263

TYPHACEAE

TyphalatifoliaL. - JS 7210XYRIDACEAE

XyrisambiguaKunth - EDM 272XyrisbaldwinianaSchult. - B&O 7187

XyrisdiformisChapm. - M&M 3407XyrisjupicaiRich. - JS 7535

XyristortaJ. E. Smith - JS 7534

DICOTYLEDONAE (DICOTS)

ACANTHACEAEDiclipterabrachiata(Pursh) Spreng. - JS 7398

Hygrophilalacustris(Schlecht. & Cham.) Nees- JS 7551

Justicia ovata (Walt.) Lindau var. lanceolata(Chapm.) Long. - JS 7432

Ruelliacaroliniensis(J.M.Gmel) Steyd. - DJC

& EDM 4RuelliahumilisNutt. - EDM 266ACERACEAE

AcernegundoL. - EDM 162

AcerrubrumL. - JS 7178AMARANTHACEAE

AmaranthusblitumL. - JS 7369*AmaranthusspinosusL. - EDM 100

FroelichiadrummondiiMoq. - EDM 178

Froelichiagracilis(Hook.) Moq. - JS 7410

IresinerhizomatosaStandl. - JS 7430ANACARDIACEAE

RhusaromaticaAit. - EDM 66RhuscopallinaL. - EDM 152

RhusglabraL. - EDM 153Rhuslanceolata(Gray) Britt. - EDM 297

RhustrilobataNutt. - EDM 2Toxicodendronradicans(L.) O. Ktze. - EDM 67

APIACEAE (UMBELLIFERAE)Centellaerecta(L.) Fern. - JS 7390

ChaerophyllumtainturieriHook. - JS 6169CicutamaculataL. - WCH & JS 12354

Cyclospermum leptophyllumSprague ex Britt.& Wilson - WCH & JS 12140

DaucuspusillusMichx. - EDM 418

EryngiumintegrifoliumWalt. - EDM 228EryngiumprostratumNutt. ex DC. - JS 7404

Eryngiumyuccifol iumMichx. - EDM s.n.HydrocotyleranunculoidesL. f. - JS 7421HydrocotyleverticillataThunb. - JS 4722

Limnosciadiumpumilum (Engelm. & Gray)

Math. & Const. - JS 7436Oxypolisrigidior(L.) Raf. - GV s.n.

Polytaenia texana (Coult. & Rose) Math. &Const. - EDM s.n.

Ptilimium capillaceum (Michx.) Raf. - EDM

228

Ptilimiumcostatum(Ell.) Raf. - MD 1354SaniculacanadensisL. - JS 7501

Spermolepisdivaricata(Walt.) Raf. ex Ser. - JS7515Ziziaaurea(L.) Koch - JS 7536

APOCYNACEAE

AmsoniatabernaemontanaWalt. - JS 7358ApocynumcannabinumL. - JS 7372

Trachelospermum difforme (Walt.) Gray - JS7214

AQUIFOLIACEAE

IlexdeciduaWalt. - MD 1371

IlexopacaSoland. in Ait. - MD 1339IlexvomitoriaSoland. in Ait. - EDM 157

ARALIACEAEAraliaspinosaL. - WCH & JS 12114

ARISTOLOCHIACEAEAristolochiareticulataJacq. - GV 387

ASCLEPIDACEAEAsclepiasamplexicaulisSm. - EDM 392

AsclepiasobovataEll. - CMR 389AsclepiasrubraL. - CMR 388

AsclepiastomentosaEll. - WCH & JS 12345Asclepias tuberosa L. ssp. interior Woods. -

CMR 390AsclepiasverticillataL. - JS 7375

Matelea cynanchoides (Engelm.) Woods. - JS

7444Mateleadecipiens(Alex.) Woods. - DF s.n.

Mateleagonocarpos(Walt.) Shinners - JS 7445ASTERACEAE (COMPOSITAE)Acmellaoppositifolia(Lam.) Jansen var. repens

(Walt.) Jansen - JS 6305

AmbrosiaartemisiifoliaL. - EDM 274Ambrosia cumanensis Kunth in H.B.K. - JS

7294AmbrosiatrifidaL. - JS 7295

Antennariaparlini i Fern. ssp. fallax (Greene)Bayer & Stebbins - EDM 276

AnthemiscotulaL. - EDM 277Aphanostephus skirrhobasis (DC.) Trel. - JS

7297

Ageratinarugosa(L.) King & Rob. - JS 7312

BaccharishalimifoliaL. - JS s.n.Berlandierapumila(Michx.) Nutt. - EDM 285

Berlandierabetonicifolia(Hook.) Small - WCH11819

Bidensaristosa(Michx.) Britt. - JS 7306

BidensbipinnataL. - JS 7304

Bidenslaevis(L.) B.S.P. - MD 1274BoltoniadiffusaEll. - EDM s.n.

Brickell iaeupatorioides(L.) Shinners - JS 7305CalyptocarpusvialisLess. - JS 7302

Chaetopappa asteroides Nutt. ex DC. - EDM

289ChrysopsispilosaNutt. - MD 1321

CirsiumhorridulumMichx. - GV 291CirsiummuticumMichx. - O&B 7974Conocliniumcoelestinum(L.) DC. - JS 3713

Conyzacanadensis(L.) Cronq. - EDM 292

Coreopsisbasalis(Dietr.) Blake. - RL s.n.CoreopsisintermediaSherff - JS 7282

CoreopsistinctoriaNutt. - JS 7285CoreopsistripterisL. - O&B 7970


15/22


Croptilondivaricatum(Nutt.) Raf. - JS 7289

Doellingeria sericocarpoides Small - O&B8636

Echinaceapallida(Nutt.) Nutt. - JS 7290

EchinaceasanguineaNutt. - EDM 95Ecliptaprostrata(L.) L. - JS 7291ElephantopuscarolinianusRaeusch. - JS 7292

ElephantopustomentosusL. - JS 7293

Erechiti tes hieraciifolia (L.) Raf. ex DC. - JS7303

ErigeronphiladelphicusL. - JS 7307ErigeronstrigosusWilld. - WCH & JS 12372

ErigerontenuisT. & G. - JS 7308

Eupatoriumcapillifolium(Lam.) Small - WCH

12427EupatoriumcompositifoliumWalt. - JS 7310

EupatoriumglaucescensEll. - WCH 11809EupatoriumperfoliatunL. - WCH 11325

EupatoriumrotundifoliumL. - JS 7309EupatoriumserotinumMichx. - JS 7315

Euthamia leptocephala (T. & G.) Greene - JS7318

Evaxcandida(T. & G.) Gray - JS 7316Evax verna Raf. - JS 7317

*Facelisretusa(Lam.) Sch. Bip. - JS 7320Fleischmanniaincarnatum(Walt.) King & Rob.

- JS 7311Gaillardiaaestivalis(Walt.) Rock - JS 7324

GaillardiapulchellaFoug. - WCH & JS 12380

Gamochaetafalcata(Lam.) Cabrera - EDM 57-

63a

Gamochaetapensylvanica (Willd.) Cabrera -EDM 57-63bGamochaetapurpurea(L.) Cabrera - JS 7322

Heleniumamarum(Raf.) Rock - JS 7323

Helianthus angustifolius L. - M&M 3548; JS7327

HelianthusdebilisNutt. - JS 7321HelianthushirsutusRaf. - JS 7325

HelianthusmollisLam. - JS 7328

Heterothecasubaxillaris(Lam.) Britt. & Rusby

- JS 7329HieraciumgronoviiL. - JS 7330

Hymenopappus carrizoanus B.L. Turner - JS10542a

HymenopappusscabiosaeusLHer. - JS 7335Hymenopappus scabiosaeus LHer. var.

artemisiifolius(DC.) Gandhi & Thomas - JS10538a

*Hypochaeri s brasiliensis (Less.) Griseb. -WCH & JS 12143

IvaangustifoliaNutt. ex DC. - EDM 12IvaannuaL. - JS 7332

Krigiacespitosa(Raf.) Chamb. - JS 7281Krigiadandelion(L.) Nutt. - EDM s.n.

LactucacanadensisL. - JS 7334

Lactucafloridana(L.) Gaertn. - JS 7331LactucaserriolaL. - JS 7333

Liatriselegans(Walt.) Michx. - JS 7336Liatrissquarrosa(L.) Michx. - JS 7337Mikaniascandens(L.) Willd. - JS 7340

Packeraglabella(Poir.) Jeff. - JS 7350

Packera obovata (Muhl. ex Willd.) Weber &Love - JS 7352

Palafoxia reverchonii (Bush) Cory - WCH11813

Palafoxiarosea(Bush) Cory - WCH 11852

PartheniumhysterophorusL. - KF 1103

Pityopsisgraminifolia(Michx.) Nutt. - DJC &

EDM 93

Plucheacamphorata(L.) DC. - JS 7343Plucheafoetida(L.) DC. - JS 7341

Plucheaodorata(L.) Cass. - JS 7346

Plucheapurpurescens(Sw.) DC. - JS 7346

PluchearoseaGodfrey - JS 7345

Pseudognaphalium obtusifolium (L.) Hill. &

Burtt - JS 7326

Pyrrhopappus carolinianus- WCH 11326

Rudbeckia grandiflora (D. Don) DC. - JS

7348

RudbeckiahirtaL. - JS 7351

SenecioampullaceusHook. - JS 7349

SilphiumradulaNutt. - WCH & JS 12381

SolidagoargutaAit. - JS 7347

SolidagocanadensisL. - EDM s.n.

SolidagonemoralisAit. - JS 7353

SolidagoodoraAit. - MD 1319

SolidagopetiolarisAit. - EDM s.n.

SolidagoradulaNutt. - JS 7338

SolidagorugosaMill - M&M 3598, 3569

SolidagoulmifoliaMuhl. ex Willd. - GV s.n.

*SolivamutsiiKunth - JS 7354

SolivasessilisLop. & Pav. - JS 7355

*SonchusoleraceusL. - WCH 11327

SymphyotrichumdrummondiiLindl. - JS 7298

Symphyotrichumdumosum(L.) G. Nesom. - JS

7299

Symphyotrichumericoides(L.) G. Nesom. - MD1282; EDM 281

Symphyotrichumeulae(Shinners.) G. Nesom. -

JS 6308

Symphyotrichumlateriflorus(L.) Britt. - M&M

3680

Symphyotrichum oolentangiensis Riddell - JS

7301

Symphyotrichumpatens(Ait.) G. Nesom. - GV

280

Symphyotrichumpuniceum (L.) Love & Love

var. scabricaulis (Shinners) G. Nesom - MD

1348

Symphyotrichumsericeum(Vent.) G. Nesom -JS 7300

SymphyotrichumumbellatusMill. var. latifolius

Gray - MD 1352

*Taraxacum officinaleWeber ex Wiggers - JS

7360

Tetragonatheca ludoviciana (T. & G.) Gray -

s.n.

Thelesperma filifolium(Hook.) Gray - JS 7361

Verbesinaencelioides(Cav.) Benth. & Hook. ex

Gray. - MD 1316

Verbesina helianthoides Michx. - WCH & JS

12361

VerbesinavirginicaL. - JS 7362

VernoniabaldwiniiTorr. - JS 7364

Vernoniagigantea(Walt.) Trel. - JS 7363

VernoniamissuricaRaf. - JS 7365

Vernoniatexana(Gray) Small. - EDM s.n.

XanthiumstrumariumL. - JS 7366

BERBERIDACEAE

PodophyllumpeltatumL. - EDM 256


16/22


BETULACEAE

Alnus serrulata(Dryand ex Ait.) Willd. - M&M4030

BetulanigraL. - EDM 70

Carpinus carolinianaWalt. - JP s.n.Ostryavirginiana(Mill.) K. Koch - JS 7244BIGNONIACEAE

Campsisradicans(L.) Seem. ex Bureau. - EDM

149Catalpaspeciosa(Barney) Warder ex Engelm. -

JS 7179BORAGINACEAE

*Buglossoides arvense (L.) I.M. Johnst. - JS

7383

HeliotropiumindicumL. - JS 7420Lithospermum caroliniense (Gmel.) MacM. -

CMR 16573Lithospermum incisumLehm. - EDM 252

MyosotismacrospermaEnglem. - EDM s.n.MyosotisvernaNutt. - EDM 57-82

BRASSICACEAE (CRUCIFERAE)ArabiscanadensisL. - EDM 382

*Capsella bursa-pastoris (L.) Medic. - EDM401

CardamineparvifloraL. var. arenicola(Britt.)Schulz - MD 1085

CardaminepensylvanicaMuhl. ex Willd. - JS7387

Descurainiapinnata(Walt.) Britt. - EDM 421

DrababrachycarpaT. & G. - JS 7400

LepediumaustrinumSmall - EDM 105

LepediumvirgincumL. - EDM 105Rorippapalustris(L.) Besser. var. fernaldiana(Butters. & Abbe) Stuckey - JS 7490

Rorippa sessiliflora (Nutt. ex T. & G.) A.S.

Hitchc. - JS 6304*Sisymbriumofficinale(L.) Scopoli - JS 7510

StreptanthushyacinthoidesHook. - EDM 105BUDDLEJACEAE

Polypremum procumbensL. - EDM 206

CABOMBACEAE

Brasenia schreberiGmel. - WCH 11324CACTACEAE

Opuntiahumifusa(Raf.) Raf. - JS 7457Opuntiastricta(Haw.) Haw. - EDM 62

CALLITRICHACEAECallitricheheterophyllaPursh - JS 7385

CAMPANULACEAELobeliaappendiculataA. DC. - EDM 276

LobeliacardinalisL. - EDM 278LobeliapuberulaMichx. - M&M 3597

LobeliareverchoniiB.L. Turner - M&M 3683Triodanisperfoliata(L.) Nieuw. - EDM 279

CAPPARIDACEAEPolanisiaerosa(Nutt.) Iltis - EDM 411

CAPRIFOLIACEAE

*LonicerajaponicaThunb. - JS 7195LonicerasempervirensL. - JS 7184

SambucusnigraL. ssp. canadensis(L.) Bolli -EDM 151SymphoricarposorbiculatusMoench - JS 7211

ViburnumnudumL. - MD 1110

ViburnumrufidulumRaf. - MD 1080CARYOPHYLLACEAE

ArenariadrummondiiShinners - EDM 28*ArenariaserpyllifoliaL. - JS 7373

Cerastium brachypodum (Engelm. ex Gray)

Robins. - EDM 406

*CerastiumglomeratumThuillier - JHR 405LoeflingiasquarrosaNutt. - EDM s.n.

Minuartia drummondii (Shinners) McNeill -EDM 383Minuartiapatula(Michx.) Mattf. - EDM 384

Paronychia drummondiiT. & G. - MD 1299

Sagina decumbens(Ell.) T. & G. - JS 7497SileneantirrhinaL. - JS 7508

*SilenegallicaL. - JS 7509*Stellariamedia(L.) Vill. - JS 7518

CERATOPHYLLACEAE

CeratophyllumdemersumL. - WCH 11852

CHENOPODIACAEChenopodiumalbumL. - EDM 404

ChenopodiumambrosioidesL. - EDM & JDC91

CISTACEAEHelianthemum carolinianum (Walt.) Michx. -

EDM 193HelianthemumgeorgianumChapm. - JS 7418

HelianthemumrosmarinifoliumPursh - JS 7419LecheamucronataRaf. - EDM 193

LecheatenuifoliaMichx. - EDM s.n.CLUSIACEAE

Hypericumcrux-andreae(L.) Crantz - JS 7182Hypericumdrummondii(Grev. & Hook.) T. &

G. - JS 7424

Hypericumhypericoides(L.) Crantz - MD 1289HypericummutilumL. - EDM 187

HypericumpunctatumLam. - JS 7425Triadenumvirginicum(L.) Raf. - MD 1106Triadenumwalteri(Gmel.) Gl. - MD 1275

CONVOLVULACEAE

DichondracarolinensisMichx. - CMR 17278Evolvulus sericeusSw. - JS 7407

Ipomoea cordatotriloba Denn. var. torreyana(Gray) Austin - EDM 249

IpomoealacunosaL. - JS 7427Ipomoeapandurata(L.) Mey. - JS 7428

Stylisma pi cker ingi i (Curt.) Gray var.pattersonii (Fern. & Schub.) Myint - EHM

399CORNACEAE

CornusdrummondiiC. A. Mey. - JS 7233CornusfloridaL. - MD 1326

CRASSULACEAEPenthorumsedioidesL. - EDM 115

SedumnuttallianumRaf. - JS 7506CUCURBITACEAE

MelothriapendulaL. - WCH & JS 12376CUSCUTACEAE

Cuscuta compactaJuss. - CC s.n.CuscutacuspidataEngelm. - MD 1332

DROSERACEAE

DroserabrevifoliaPursh - EDM 426DroseracapillarisPoir. - MD 1336

EBENACEAEDiospyrosvirginianaL. - JS 7275ERICACEAE

Rhododendronoblongifolium (Small) Millais -

MD 1335VacciniumarboreumMarsh. - EDM 235

EUPHORBIACEAEAcalyphagracilensGray - MD 1308


17/22


Acalypha monococca (Engelm. & Gray) Lill.

W. Mill. & Gandhi - EDM 190

AcalyphaostryifoliaRidd. - JS 7366

Chamaesycebombensis(Jacq.) Dugand - EDM

147Chamaesyce cordifolia (Ell.) Small - WCH11812

ChamaesycemaculataL. - JS 7462

ChamaesycemissuricaRaf. - EDM 147Chamaesyceprostrata(Ait.) Small - EDM 57

Cnidoscolus texanus (Muell. Arg.) Small -EDM 409

CrotonargyranthemusMichx. - JS 7234

CrotoncapitatusMichx. - EDM 415

CrotonglandulosusL. - GV 413CrotonlindheimerianusScheele - GV 416

CrotonmichauxiiWeb. - JS 7395CrotonmonanthogynusMichx. - EDM 417

CrotonwilldenowiiG.L.Webster - O&B 7980EuphorbiacorollataL. - JS 7406

Euphorbia cyathophoraMurray - MD 1308Euphorbia dentataMichx. - JS 7538

Euphorbia spathulataLam. - EDM s.n.Phyllanthus caroliniensisWalt. - JS 7463

Sapium sebiferum(L.) Roxb. - JS 7213Stillingia sylvatica L. - EDM 147

TragiabrevispicaEngelm. & Gray. - JS 6685TragiaramosaTorr. - EDM 147

TragiaurticaefoliaMichx. - WCH & JS 12370FABACEAE

AmorphafruticosaL. - JS 7197

Amorpha paniculataT. & G. - EDM 131Amphicarpaea bracteata(L.) Fern. - EDM 132Astragulus distortusT. & G. - EDM 133

AstragulusleptocarpusT. & G. - JS s.n.

AstragulussoxmaniorumLundell - EDM 135BaptisiabracteataMuhl. ex Ell. var. laevicaulis

(Canby) Isely - EDM 140BaptisianuttallianaSmall. - EDM 139

Centrosemavirginianum(L.) Benth. - GV 146

CerciscanadensisL. - JS 7180

Chamaecristafasciculata (Michx.) Greene -EDM 142

Chamaecristanictitans(L.) Moench - EDM 145Clitoria marianaL. - EDM 148

Crotalaria sagittalisL. - GV 151Daleaphleoides (T. & G.) Shinners var.

microphylla(T. & G.) Barneby - EDM 178Daleavillosa(Nutt.) Spreng. var. grisea(T. &

G.) Barneby - EDM 183Desmanthusillinoensis(Michx.) McM. ex Rob-

ins. & Fern. - JS 7276Desmodiumciliare(Muhl. ex Willd.) DC. - GV

776Desmodiumglabellum(Michx.) DC. - MD 1286

Desmodiumlaevigatum(Nutt.) DC. - EDM 55-

10Desmodium pauciflorum(Nutt.) DC. - EDM 155

Desmodiumsessilifolium(Torr.) T. & G. - EDM152Desmodiumviridiflorum(L.) DC. - GV 158

Erythrina herbaceaL. - JS 7235

Galactiaregularis(L.) B.S.P. - GV 160Galactiavolubilis(L.) Britt. - WCH 11858

GleditsiaaquaticaMarsh. - JS 7236GleditsiatriacanthosL. - GV s.n.

Glottidiumvesicarium(Jacq.) Harper - JS 7257

Indigofera miniata Ort.var. leptosepala (Nutt.

ex T. & G.) B.L.Turner - EDM 163*Kummerowiastriata(Thunb.) Hook. & Arn. -

EDM 164LathyruspusillusEll. - JS 7278*Lespedezacuneata(Dumont) G. Don - EDM

172

Lespedezahirta(L.) Hornem. - EDM 171LespedezaprocumbensMichx. - GV 174

Lespedezarepens(L.) Bart. - GV 172LespedezastueveiNutt. - GV 166

Lespedezavirginiana(L.) Britt. - WCH 11860

LupinustexensisHook. - EDM 176

*MedicagolupulinaL. - JS 7279*Medicagominima(L.) Bartalina - JS 7280

*MelilotisalbusMedic. - JS 7287*Melilotis indicus(L.) All. - JS 7288

Mimosanuttallii (DC. ex. Britt. & Rose) B.L.Turner - EDM 189

Neptunialutea(Leavenw.) Benth. - GV 177Orbexilumpendunculatum (Mill.) Rydb. - JS

7284Pediomelumdigitatum (Nutt. ex Torr.) Isley -

DJC & EDM 51Pediomelum hypogaeum (T. & G.) Rydb. var.

subulatum(Bush) J. Grimes - MD 1098Pediomelum rhombifolium (T. & G.) Rydb. -

B&K 13707

ProsopisglandulosaTorr. - WCH & JS 12134*PisumsativumL. - WCH & JS 12128

RhynchosialatifoliaNutt. ex T. & G. - GV 187Robiniapseudo-acaciaL. - JS 7207Sesbaniadrummondii(Rydb.) Cory - JS 7255

Sesbania herbacea (Mill.) R. McVaugh - JS

7256Strophostyles leiosperma(T. & G.) Piper - GV

191Stylosanthes biflora(L.) B.S.P. - EDM 192

Tephrosia onobrychoidesNutt. - WCH 11821Tephrosiavirginiana(L.) Pers. - MD 1342

TrifoliumbejarienseMoric. - EDM 196*Trifolium campestre Schreb. in Sturm. - JS

7283TrifoliumcarolinianaMichx. - EDM 57-71

*TrifoliumincarnatumL. - KL s.n.*TrifoliumrepensL. - JS 7286

ViciacarolinianaWalt. - EDM 774VicialudovicianaNutt. - MD 1075

ViciaminutifloraDietr. - EDM 200FAGACEAE

*Quercus acutissimaCarruthers - WCH & JS12144

QuercusalbaL. - JS 7204QuercusfalcataMichx. - EDM 34

QuercusincanaBartr. - MD 1363

QuercuslyrataWalt. - WCH & JS 12357QuercusmarilandicaMuenchh. - GV s.n.

QuercusnigraL. - GV s.n.QuercusphellosL. - GV 2QuercusshumardiiBuckl. - JS 6689

QuercusstellataWang. var. margaretta(Ashe)

Sarg. - JS 7206Quercus stellata Wang. var. stellata - EDM

289QuercusvelutinaLam. - JS 7205


18/22


FUMARIACEAE

Corydalis micrantha (Engelm.) Gray - EDM410

GENTIANIACEAE

Bartoniapaniculata (Michx.) Muhl. - M&M3679Sabatiaangularis(L.) Pursh - WCH & JS 12364

Sabatiacampanulata(L.) Torr. - JS 7495

SabatiacampestrisNutt. - JS 7495SabatiagentianoidesEll. - BB&S 01

GERANIACEAEGeraniumcarolinianumL. - EDM 126

GROSSULARIACEAE

RibescurvatumSmall - CMR 16988

HALORAGRACEAEMyriophyllumheterophyllumMichx. - JS 7449

ProserpinacapalustrisL. - EDM 224HAMAMELIDACEAE

LiquidambarstyracifluaL. - JS s.n.HIPPOCASTANACEAE

AesculuspaviaL. - JS 7185HYDROPHYLLACEAE

HydroleaovataChoisy. - M&M 4037NamahispidumGray. - JS 7450

NemophilaphacelioidesNutt. - JS 7453PhaceliahirsutaNutt. - JS 7459

Phacelia strictiflora(Engelm. & Gray) Gray -EDM 13

JUGLANDACEAE

Caryaaquatica(Michx. f.) Nutt. - WCH & JS

12359

CaryatomentosaNutt. - WCH & JS 12116CaryatexanaBuckl. - MD 1095KRAMERIACEAE

KramerialanceolataTorr. - EDM 79

LAMIACEAEBrazoriatruncata(Benth.) Engelm. & Gray var.

pulcherrima(Lundell) M. W. Turner - EDM396

HedeomahispidaPursh - RL s.n.

*LamiumamplexicauleL. - JS 7433

LycopusrubellusMoench. - JHR 37MonardafistulosaL. - EDM 133

MonardapunctataL. - EDM 121*Perillafrutescens(L.) Britt. - JS 7458

Physostegiavirginiana(L.) Benth. - JS 7464PrunellavulgarisL. - JS 7486

PycnanthemumtenuifoliumSchrad. - JS 7487Rhododonciliatus(Benth.) Epl. - EDM 254

SalviaazureaLam. - JS 7498SalvialyrataL. - JS 7499

ScutellariacardiophyllaEngelm. & Gray. - MD1343

ScutellariaintegrifoliaL. - EDM 254ScutellariaparvulaMichx. - EDM 57-101

StachyscrenataRaf. - JS 7517

TeucriumcanadenseL. - JS 7520TrichostemadichotomumL. - MD 1305

TrichostemasetaceumHoutt. - MD 1329LAURACEAESassafrasalbidum(Nutt.) Nees - MD 1373

LENTIBULARIACEAE

UtriculariacornutaMichx. - M&M 3808UtriculariagibbaL. - JS 7526

UtriculariainflataWalt. - CMR 17275UtriculariajunceaVahl. - M&M 3988

UtriculariamacrorhizaLe Conte - WCH 7189

LINACEAE

LinumberlandieriHook. - JS 7437Linummedium(Planch.) Britt. - DJC & EDM 50

LinumstriatumWalt. - EDM 132LOASACEAEMentzelianuda (Pursh) T. & G. - WCH & JS

12367

LOGANACEAEMitreolasessilifolia(J.F.Gmel) G. Don - O&B

7952LYTHRACEAE

AmmanniaauriculataWilld. - JS 7370

AmmanniacoccineaRottb. - JS 7371

Decodon verticillatus(L.) Ell. - MD 1375Didiplis diandra(DC.) Wood - WCH 11805

Rotalaramosior(L.) Koehne - JS 7491MALVACEAE

Callirhoe involucrata(Torr.) Gray - EDM 400Callirhoe papaver(Cav.) Gray - EDM 81

HibiscuslaevisAll. - JS 7240Hibiscus moscheutosL. ssp. lasiocarpos (Cav.)

Blanch. - M&M 3984; JS 7239Malvaviscus drummondiiT. & G. - JS 7253

Modiolacaroliniana(L.) G. Don. - JS 7545*SidarhombifoliaL. - GV s.n.

MELASTOMATACEAERhexiamarianaL. - JS 7489

RhexiavirginicaL. - M&M 3421

MELIACEAE*MeliaazedarachL. - JS 7186

MENISPERMACEAECocculuscarolinus(L.) DC. - EDM s.n.MOLLUGINACEAE

MollugoverticillataL. - MD 1301

MORACEAEMaclurapomifera (Raf.) Schneid. - JS 7243

MorusrubraL. - JS 7198MYRICACEAE

MyricaceriferaL. - MD 1288MyricaheterophyllaRaf. - WCH & JS 12130

NELUMBONACEAENelumbolutea(Willd.) Pers. - JS 7452

NYCTAGINACEAEMirabil isalbida(Walt.) Heimrl. - EDM 80

NYMPAHACEAENupharadvena(Ait.) Ait. - JS 7539

NymphaeaodorataAit. - WCH & JS 12574NYSSACEAE

NyssasylvaticaMarsh. - EDM 316OLEACEAE

Forestieraacuminata(Michx.) Poir. - JS 7237Forestiera ligustrina(Michx.) Poir. - WCH &

JS 12378FraxinusamericanaL. - JS 7194

FraxinuspennsylvanicaMarsh. - JS 7242

*LigustrumsinenseLour. - JS 7192ONAGRACEAE

LudwigiaalternifoliaL. - MD 1366LudwigiadecurrensWalt. - MD 1333LudwigiaglandulosaWalt. - EDM 224

LudwigialinearisWalt. - EDM 224

Ludwig ia pepl oi des (Kunth) Raven. ssp.glabrescensRaven - JS 7440

LudwigiarepensForst. - JS 7441LudwigiasphaerocarpaEll. - O&B 7956


19/22


Oenotheragrandis(Britt.) Smyth - JS 7454

OenotheraheterophyllaSpach - EDM 56-26

OenotheralaciniataHill - EDM 224

OenotheralinifoliaNutt. - RL s.n.

OenotherarhombipetelaT. & G. - JS 7455OenotheraspachianaT. & G. - EDM 57-70OenotheraspeciosaNutt. - EDM & JDC s.n.

OXALIDACEAE

OxalisdilleniiJacq. - EDM 130aOxalislyoni Pursh - EDM 27

OxalisviolaceaL. - EDM 130bPAPAVERACEAE

Argemone albiflora Hornem. ssp. texana G.

Ownbey - GV 385

PASSIFLORACEAEPassifloraincarnataL. - WCH 11863

PassifloraluteaL. - EDM s.n.PHRYMACEAE

PhrymaleptostachyaL. - JS 7460PHYTOLACCACEAE

PhytolaccaamericanaL. - MD 1323PLANTAGINACEAE

PlantagoaristataMichx. - EDM s.n.PlantagohookerianaFisch. & Mey. - JS 7468

PlantagohybridaBart. - WCH & JS 12135PlantagopatagonicaJacq. - EDM 85

PlantagorhodospermaDcne. - JS 7469PlantagovirginicaL. - EDM 269

PLATANACEAE

PlatanusoccidentalisL. - JS 7246

POLEMONIACEAE

Ipomopsisrubra(L.) Wherry - JS 7429PhloxdrummondiiHook. - KL 2PhloxpilosaL. - MD 1071

POLYGALACEAE

PolygalacruciataL. - JS 7470PolygalaincarnataL. - JS 7471

PolygalaleptocaulisT. & G. - EDM 145PolygalamarianaMill. - EDM 119

PolygalapolygamaL. var. obtusaChodat. - RL

s.n.

PolygalasanguineaL. - M&M 3954PolygalaverticillataL. - JS 7472

POLYGONACEAEBrunnichiaovata(Walt.) Shinners. - JS 7382

EriogonumannuumNutt. - EDM 427EriogonumlongifoliumNutt. - GV 428

Eriogonum multiflorumBenth. - MD 1318Polygonellaamericana(Fisch. & Mey.) Small -

JS 7247*PolygonumaviculareL. - JS 7474

Polygonum hydropiperoides Michx. - MD1284

PolygonumpensylvanicumL. - JS 7477PolygonumpunctatumEll. - MD 1285

PolygonumsagittatumL. - JS 7475

PolygonumtenueMichx. - JS 7476Tovaravirginianum(L.) Raf. - JS 7478

RumexchrysocarpusMoris - JS 7493RumexcrispusL. - JS 7492RumexhastatulusBaldw. - EDM 77

Rumex pulcherL. - JS 7494

PORTULACACEAEClaytoniavirginicaL. - CMR 16989

PortulacaoleraceaL. - JS 7483PortulacaumbraticolaKunth. - JS 7482

Talinum rugospermumHolz. - JS 7519

PRIMULACEAE

*AnagallisarvensisL. - JS 7359

*Anagallisminima(L.) E.H.L. Krause - WCH

& JS 12139Samolus valerandi L. ssp. parviflorus (Raf.)

Hulten - JS 7500

RANUNCULACEAE

Anemone carolinianaWalt. - EDM 380

ClematiscrispaL. - JS 7241

ClematisreticulataWalt. - JS 7392

Clematisversicolor Small ex Rydb. - JS 7245

DelphiniumcarolinianumWalt. ssp. vimineum

(D. Don) Warnock - GV 419

Delphinium carolinianumWalt. ssp. virescens

(Nutt.) Brooks - EDM 420

MyosurusminimusL. - JS 7448

RanunculusfascicularisMuhl. ex Bigel. - EDM

90

Ranunculus laxicaulis (T. & G.) Darby - MD

1072

RanunculusparviflorusL. - JS 7488

RanunculuspusillusPoir. - EDM 91

ThalictrumrevolutumDC. - B&K 13709

RHAMNACEAE

Berchemiascandens(Hill) K. Koch. - EDM 64

CeanothusamericanusL. - JS 7187

Frangulacaroliniana(Walt.) Gray - EDM s.n.

ROSACEAE

Agrimonia rostellata Wallr. - JS 7357

CrataeguscrusgalliL. - EDM 71

CrateagusmarshalliiEgglston - EDM 321CrataegusspathulataMichx. - EDM 126

CrataegusunifloraMuench. - JS 7200

CrataegusviridisL. - JS 7201

*Duchesnea indica(Andrz.) Focke - JS 7401

GeumcanadenseJacq. - JS 7415

Porteranthusstipulata(Willd.) Britt. - JS 7481

PotentillasimplexMichx. - JS 7485

PrunusangustifoliaMarsh. - EDM 7

Prunuscaroliniana(Mill.) Ait. - JS 7199

PrunusgracilisEngelm. & Gray - JS 7202

PrunusmexicanaS. Wats. - GV s.n.

PrunusserotinaEhrhart - JS 7203

PrunusumbellataEll. - JS 7249RosasetigeraMichx. - EDM 109

RubusaboriginumRydb. - EDM 37

RubusargutusLink - EDM 19

RubusriograndisBailey - MD 1089

RUBIACEAE

CephalanthusoccidentalisL. - EDM 150

DiodiateresWalt. - GV 423

DiodiavirginianaL. - MD 1278

GaliumaparineL. - JS 7411

GaliumcircaezansMichx. - JS 7412

GaliumobtusumBigel. - JS 7413

GaliumpilosumAit. - EDM 37

GaliumtinctoriumL. - JS 7414

HoustoniapusillaJ. Schopf. - EDM 270

Mitchel la repensL. - JS 7188

Oldenlandiboscii(DC.) Chapm. - JS 7417

OldenlandiaunifloraL. - WCH & JS 12353

*SherardiaarvensisL. - JS 7507

Stenarianigricans(Lam.) Terrell var. nigricans

- JS 7379


20/22


RUTACEAE

Zanthoxylumclava-herculisL. - JS 7212SALICACEAE

PopulusdeltoidesBart. ex. Marsh. - JS 7248

SalixnigraMarsh. - EDM 42SAPINDACEAECardiospermumhalicacabumL. - JS 7388

SapindussaponariaL. var. drummondii(Hook.

& Arn.) L. Benson. - JS 7251SAPOTACEAE

SideroxylonlanuginosumMichx. - GV s.n.SARRACENIACEAE

SarraceniaalataWood - EDM 110

SAURURACEAE

SaururuscernuusL. - EDM 52SAXIFRAGACEAE

Lepuropetalon spathulatumEll. - JS 7543SaxifragatexanaBuckl. - JS 7502

SCROPHULARIACEAEAgalinisfasciculata(Ell.) Raf. - M&M 3691

Agalinisheterophylla(Nutt.) Small ex Britt. - JS7367

Agalinispurpurea(L.) Penn. - JS 7368Aureolariagrandiflora(Benth.) Penn. - JS s.n.

*Bellardia trixago(L.) All. - JS 7360CastillejaindivisaEngelm. - EDM 402

GratiolabrevifoliaRaf. - M&M 3976GratiolaneglectaTorr. - JS 7550

GratiolapilosaMichx. - JS 11401

GratiolavirginianaL. - MD 1104

Leucospora multifida(Michx.) Nutt. - JS 7435

Linderniadubia(L.) Pennell - WCH & JS 12336Mecardoniaacuminata(Walt.) Small - WCH &JS 12342

MimulusalatusAit. - DJC & EDM 2

Nuttallanthus canadensis (L.) Sutton - EDM257

PenstemonaustralisSmall - CMR 16575Penstemon laevigatusAit. ssp. digitalis(Nutt.

ex Sims) A. Bennett - EDM s.n.

PenstemonmurrayanusHook. - EDM 257

VerbascumthapsusL. - GV s.n.*VeronicaagrestisL. - JS 7529

*VeronicaarvensisL. - JS 7530VeronicaperegrinaL. - JS s.n.

SOLANACEAEPhysaliscinerascens(Dun.) A.S. Hitchc. - MD

1309PhysalisheterophyllaNees - EDM 83

PhysalismollisNutt. - O&B 7978PhysalisvirginianaMill. - GV s.n.

Solanum carolinenseL. - JS s.n.Solanum dimidiatumRaf. - EDM 78

SolanumelaeagnifoliumCav. - JS 7513SolanumrostratumDun. - JS 7514

TILIACEAE

Tilia americana L. var. caroliniana (Mill.)Castiglioni - JS 7196

ULMACEAECeltislaevigataWilld. var. laevigata- JS 7231Celtis laevigata Willd. var. reticulata Torr. -

WCH 11862

Celtis laevigata Willd. var. smallii Sarg. - JS7232

CeltistenuifoliaNutt. - JS 7232Planeraaquatica(Walt.) J. F. Gmel. - GV s.n.

Ulmus alataMichx. - CMR s.n.

UlmusamericanaL. - GV s.n.

UlmuscrassifoliaNutt. - JS 7228UlmusrubraMuhl. - JS 7208

URTICACEAEBoehmeriacylindrica(L.) Sw. - MD 1294Parietariapennsylvanica Muhl. ex Willd. -

EDM 65

UrticachamaedryoidesPursh - JS 6686.VALERIANACEAE

Valerianellaradiata(L.) Dufr. - JS 7528Valerianellawoodsiana(T. & G.) Walp. - EDM

273

VERBENACEAE

CallicarpaamericanaL. - EDM 139Glandulariacanadensis(L.) Nutt. - MD 1092

Glandularia bipinnatifida (Nutt.) Nutt. - JS7416

Phylalanceolata(Michx.) Greene - JS 7461*VerbenabrasiliensisVell. - JS 7527

VerbenahaleiSmall - EDM 253VIOLACEAE

ViolalanglossiiGreene - WCH & JS 12119Violaprimuli foliaL. - JS 7531

ViolasagittataAit. - WCH & JS 12120Viola sororia Willd. var. missouriensis

(Greene) McKinney - M&M 3777Violavillosa- JS 7532

VISCACEAE

Phoradendron tomentosum (DC.) Gray. - JS7254

VITACEAEAmpelopsisarborea(L.) Koehne. - EGN 170Cissusincisa(T. & G.) Des Moulins - JS 7238

Parthenocissus quinquefolia (L.) Planch. - JS

7189VitisaestivalisMichx. var. lincecumii(Buckl.)

Kun. - GV s.n.VitiscinereaEngelm. - GV s.n.

VitismustangensisBuckl. - JS 7226VitispalmataVahl - GV s.n.

VitisrotundifoliaMichx. - MD 1109ZYGOPHYLLACEAE

TribulusterrestrisL. - JS 7524


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ACKNOWLEDGMENTS

We are grateful to a number of people from Texas Parks and Wildlife

Department, Austin, who facilitated this research. Donnie Frels Jr., Kevin

Herriman, Nathan Garner, Gary Graham, and Ron George made funds avail-

able from the Wildlife Diversity Program for the botanical inventories and

geographic information system development on GEWMA. Paul Robertson and

John Herron assisted by designating the project a Wildlife Diversity Program

performance priority. Cliff Shackelford reviewed the preliminary manuscript.

Others who assisted are Tom Wendt, who provided assistance in locating

specimens from GEWMA held in TEX-LL, and Monique Reed, who con-

ducted database searches for specimens from GEWMA held in TAES and

TAMU. Michael MacRoberts and Barbara MacRoberts of Bog Research,

Shreveport Louisiana, also read and commented on a preliminary version of

the manuscript and provided additional information on collections at

GEWMA, specifically on the beakrush-pitcher plant alliance. Finally, Edwin

Bridges read and made suggestions on manuscript improvement. He also

supplied data on several additional species he collected on the study site that

were added to the checklist.

LITERATURE CITATION

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ana, Oklahoma, and Texas and their Relations to Climate and Soil. Texas

Journal of Science 7:719.Bruner, W.E. 1931. The Vegetation of Oklahoma. Ecological Monographs

1:99188.

Coffee, D.R. 1970. Soil Survey of Anderson County, Texas. Natural Resource

Conservation Service, Temple, TX. 92 pp. and 86 maps.

Correll, D.S., and M.C. Johnston. 1970. Manual of the Vascular Plants of

Texas. Texas Research Foundation, Renner, TX. 1881 pp.

Diggs, G.M., B.L. Lipscomb, and R. J. OKennon. 1999. Shinners & Mahlers

Illustrated Flora of North Central Texas. Botanical Research Institute of

Texas, Fort Worth, TX. 1626 pp.

Dyksterhuis, E.J. 1948. The Vegetation of the Western Cross Timbers. Ecologi-cal Monographs 18:325376.

Estill, J.C., and M.B. Cruzan. 2001. Phytogeography of Rare Plant Species

Endemic to the Southeastern United States. Castanea 66:323.

Gould, F.W. 1962. Texas Plants. A Checklist and Ecological Summary. Texas

Agriculture Experiment Station, Texas A&M University, College Station,

TX. MP-585.

Gould, F.W., and R.B. Shaw. 1983. Grass Systematics, 2nd ed. Texas A&M

Press, College Station, TX. 412 pp.

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Plants of Texas. Texas Agricultural Experiment Station publ. no. MP-1655,Texas A&M University, College Station, TX. 158 pp.

Haucke, H., and D. Prochaska. 1998. Management Plan for Gus Engeling

Research and Demonstration Area. Texas Parks and Wildlife Department,

Austin, TX. 22 pp.


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Jones, S.D., J.K. Wipff, and P.M. Montgomery. 1997. Vascular Plants of Texas:

A Comprehensive Checklist including Synonymy, Bibliography, and Index.

University of Texas Press, Austin, TX. 404 pp.

National Vegetation Classification System-Oklahoma-Texas Subset. 1997. TheNature Conservancy , Conservation Science Department, Southeast Region,

Chapel Hill, NC. 217 pp.

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lished manuscript, Texas Parks and Wildlife Department, Austin, TX. 53 pp.

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and Wildlife Department, Austin. 28 pp.

Sorrie, B.A., and A.S. Weakley. 2001. Coastal Plain Vascular Plant Endemics:

Phytogeographic Patterns. Castanea 66:5082.

University of Texas Bureau of Economic Geology. 1993. Palestine Sheet-Map.

The University of Texas, Austin, TX.

Weaver, J.E., and F.E. Clements. 1938. Plant Ecology. McGraw-Hill Book Co.,

New York, NY. 601 pp.

Gus Engeling

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