Forbs and woody plants Flashcards
petiole
portion of stem sometimes attaching leaves to branches, congruent structure to the pedicel
alternate
describes a leaf pattern or in which single leaves protrude from branches alternatively from opposite sides
opposite
describes a leaf pattern in which leaves occur in pairs, originating from opposite sides of the branch
whorled
leaf pattern in which three or more leaves originate from the same ring found on a branch
imbricate
leaf pattern where leaves lay flat to branches in scale-like fashion
fascicled
leaf pattern where needle-like leaves are bundled into bunches with one, two, three or more leaves to a fascicle. Also called monophyla, biphyla, etc.
sessile
leaves are attached directly to plant stem
petiolate
leaves are attached to stem via petiole
clasping
leaves wrap around stem
decurrent
leaves not only wrap around the stem, but also grow down them
erect
stem pattern where there is one main, ascending stem
ascending
stem pattern where there are several, equally sized, verticle stems
stoloniferous
stem pattern where plants are connected by above-ground stolons
procumbent
stem pattern where stems lie prostrate on the ground
decumbent
stem pattern where stems are nearly prostrate to the ground, but curl up on the terminal ends
pinnate
veins com together, one on each side, to a central vein in a v-shape
compound
more than one leaf body occurs per leaf
compound pinnately 3-foliate
3-fold compound leaf, where lateral leaves are pinnately arranged
compound palmately 3-foliate
3-fold compound leaf, where all leaflets form 90 degree angles
compound palmately
many leaflets converge at the same point
compound even-pinnate
several leaflets occur in even numbers, connected by a mid rib, pinnately. No terminal leaflet
compound odd-pinnate
several leaflets occur in odd numbers pinnately. Terminal leaflet
compound binate
leaflets have leaflets. All are pinnately associated
