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Plant Identification Vocabulary
BLADE
Widest part of leaf
PETIOLEStalk where blade
attaches to stem
LEAF BASEShape of leaf where it attaches to petiole
Triangle
Round
Heart
Straight
Uneven
NODE or BUDPoint where petiole attaches to stem
BROAD LEAFRegular, deciduous leaves with a wide
blade
NARROW LEAFSlender leaves, needles or scales
LEAF ARRANGEMENT orLEAF ATTACHMENTPattern which leaves are attached to
stemAlternate
Opposite
Whorled
LEAF DIVISIONSimple OR Single leaf
Compound OR multiple leaflets
SIMPLE LEAF
Single Leaf
COMPOUND LEAFHaving more than one blade
Made of leaflets
LEAFLETSMany small leaves
PALMATELY COMPOUND
Made of 3 or more leaflets
In the shape of a hand
PINNATELY COMPOUNDLeaflets attached to
along a central stalk
LOBERounded projection of leaf
LEAF EDGE or LEAF MARGINEdge of leaf
Smooth (entire)
Toothed Serrate / saw toothed
Double serrate / double saw toothed
VENATIONParallel – veins run parallel to each
other
Pinnate – veins run off of a single vein
Palmate – veins come from a single point like the palm of your hand