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