Lyrate

a.	1.	(Bot.) Lyre-shaped, or spatulate and oblong, with small lobes toward the base; as, a lyrate leaf.
	2.	(Zool.) Shaped like a lyre, as the tail of the blackcock, or that of the lyre bird.

Adj.

1.

lyrate - of a leaf shape; having curvature suggestive of a lyre

simple, unsubdivided