Download Vegetative Characters

BOT 155 FIELD BOTANY
Trees
Vines
Enlightenment !!
Herbs (Wild Flowers)
Shrubs
Herb or Wildflower
A plant lacking a permanent woody stem; many are flowering garden plants or
potherbs; some having medicinal properties; some are pests
Vine
A plant with a weak stem that derives support from climbing, twining, or
creeping along a surface
Shrub
A woody plant smaller than a tree, and usually with several stems from the
same base
Tree
A tall perennial woody plant having a main trunk and branches forming a
distinct elevated crown; includes both gymnosperms and angiosperms
Organs
• Stems
• Leaves &
Reproductive
Structures
• Roots
Trees and Shrubs
Roots
Trunk (Main Stem)
Crown (Lateral Branches + Leaves
+ Reproductive Units)
Leaves
• All leaves
originate as
primordia at the
apex of a stem
Variation in
Leaves
• Number of
leaflets
• Venation
• Pattern of
attachment
on stem
Leaves
• At maturity, most leaves have a stalk
(petiole) and a flattened blade (lamina)
with a network of veins (vascular bundles).
Leaves
• Simple (single blade)
• Compound (divided
into leaflets).
– Palmately compound
leaflets attached at the
same point at end of
petiole
– Pinnately compound
leaflets in pairs along
the rachis
– Bipinnately compound
leaflets subdivided
further
Notice location of axillary bud
Simple
Compound
Narrowly Pointed
Broadly Pointed
Broadly Pointed
Bristle tipped
Rounded
Square
Narrowly Pointed
Rounded
Entire
Undulate
(Wavy)
Finely Serrate Coursely Finely Serrate
Serrate
Coursely
Serrate
Doubly Toothed
Pinnately Lobed
Pinnately Lobed
Pinnately Lobed
Palmately Lobed
Entire
Finely Serrate
Narrowly
Broadly
Wedge-shaped Wedge-shaped
Square
Heart-shaped
Rounded
Broadly
Wedge-shaped
Oblique
Linear
Elliptical
Heart-shaped
Oblong
Lance-shaped
Ovate
Obovate
Oval
Deltoid
(Triangular)
Linear
Linear
Needle-like
Scale-like
Scale-like
Awl-like