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Plant Identification
Vegetative terminology for Plant Identification (BZ223)
46
Biology
Undergraduate 2
09/12/2010

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Term
scapose
Definition
bearing a flower or influorescence on an acaulescent plant
Term
caespitose
Definition
growing in tufts, mats, or clumps
Term
decurrent
Definition
leaf attachment, base of leaf extends down plant
Term
perfoliate
Definition
leaf margin surrounds stem
Term
sessile
Definition
attached directly to stem
Term
decussate
Definition
alternating at 90 degree angles on successive nodes
Term
distichous
Definition
all leaves in same plane
Term
hastate
Definition
arrowhead shaped, base pointed upward
Term
saggitate
Definition
arrowhead shaped
Term
reniform
Definition
kidney bean shaped
Term
cordate
Definition
spade shaped
Term
obcordate
Definition
heart shaped
Term
bipinnately compound
Definition
pinnate twice
Term
ternately compound
Definition
three leaves on a stalk
Term
elliptic
Definition
lemon shaped
Term
even pinnately compound
Definition
pinnate, without terminal leaflet
Term
linear
Definition
long and narrow
Term
lanceolate
Definition
not too wide, but moreso at base
Term
ovate
Definition
wide, moreso at base
Term
acute apex
Definition
pointed tip
Term
pinnate venation
Definition
with central vein, others branch off side
Term
palmate venation
Definition
all veins from central point
Term
acuminate
Definition
very pointed tip, almost concave sides
Term
obtuse
Definition
rounded tip
Term
mucronate
Definition
rounded, but with point just at end of tip in center.
Term
truncate
Definition
square base
Term
cuneate
Definition
wedge shaped base
Term
oblique
Definition
unequal sides
Term
entire margins
Definition
not toothed or cleft, etc
Term
crenate
Definition
rounded teeth
Term
dentate
Definition
teeth pointing out on leaf margins
Term
serrate
Definition
teeth pointing upward leaf margin
Term
lobed
Definition
lobes on leaf margins
Term
cleft
Definition
sharp cuts in leaf margin
Term
glabrous
Definition
smooth, non-haired surface
Term
glandular pubescent
Definition
hairs with glands
Term
hirsute
Definition
coarse, stiff hairs
Term
puberulent
Definition
minutely pubescent, fine, short hairs
Term
stellate
Definition
branched hairs, near or at base
Term
tomentose
Definition
soft, wooly hairs, short and tangled
Term
villous
Definition
long, soft, shaggy, non-matted hair
Term
pilose
Definition
long, soft, straight hairs
Term
tendrils
Definition
twining, grasping structures (modified stem or leaf)
Term
spine
Definition
sharp, stiff structure, may be modified leaf or stipule
Term
thorns
Definition
woody, sharp, pointed modified stems
Term
prickles
Definition
sharp, non-woody structures, developed from surface bark or epidermis
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