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simple leaves 
Leaves with an undivided blade; there are many types, grouped according to shape.
lanceolate
Simple leaf with a narrow blade that is longer than it is wide, ending in a point.
ovate
Simple leaf with an egg-shaped blade.
peltate
Simple leaf with a petiole attached perpendicularly to the center of the blade’s underside.
linear
Simple leaf with a long and very narrow blade and almost parallel margins.
orbiculate
Simple leaf with a somewhat rounded blade.
cordate
Simple leaf with a heart-shaped blade.
hastate
Simple leaf with a spear-shaped blade.
spatulate
Simple leaf in which the blade widens, taking the shape of a spatula.
