Lĭpped, a.

adjective

(lĭpt), a. 1. Having lips; having a raised or rounded edge resembling the lip;—often used in composition; as, thick-lipped, thin-lipped, and the like. 2. (Bot.) Labiate.

A botanical diagram of a lipped corolla, with an irregular flower shape and a long, curved tube.
Lipped Co- rolla.