Biology lesson 1.5
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Transcript of Biology lesson 1.5
Lesson 1.5 Broadleaf trees are trees with basic leaf shape of broad and flat
Are perenials
mostly dicot angiosperm
largest in size of all plants
AmericanSycamoreTree isAmerica’s Largest BroadleafDeciduous Tree
California Redwood •Largest tree in world.
•General Sherman treeis the largest of them.
•Shed leaves in fall.
•Leaves are needle-like not broadleafed
Lesson 1.5 Broadleaf trees
examples – oaks, maples, elms, etc.
also referred to as hardwoods because of their dense hard wood
mostly deciduous
Lesson 1.5 Broadleaf trees
Deciduous vs. Evergreens
Deciduous trees loose their leaves all at once.
Ex. Oaks,Maples
Lesson 1.5 Broadleaf trees
Deciduous vs. Evergreens
Evergreens loose their leaves a little at the time and stay green year round. Ex. pines
Structure of Broadleaf Trees:
crown – bushy head formed by leaves at top
trunk – main stem have woody stem
Structure of Broadleaf Treesbranches – where stem divides at top
bark – rough protective layer of stem, branches, and sometimes roots
Flowers of Broadleaf Trees
Angiosperms – they do produce flowers
Some are decorative hardwoods = dogwood, magnolia
Flowers of Broadleaf Trees
most have small tiny flowers or catkins which are long, droopy, tassel-like clusters of flowers