Lyrate

The passage of time could only enhance his tenderness for the creature he clasped, this adored creature, whose motion was now more supple, whose haunches had grown more lyrate, whose hair-ribbon he had undone.

1976, T. G. Tutin, Flora Europaea, Volume 4: Plantaginaceae to Compositae (and Rubiaceae), page 72, Basal leaves simple, lyrate or pinnatifid; cauline leaves 1- to 2-pinnatifid, pinnatisect or simple.