A Grammatical Dictionary of Botanical Latin

bilabiate, with two lips; “divided into two separate parts or lips, placed one over the other” (Lindley); “divided into two lips, as are many gamopetalous corollas, etc.” (Jackson): bilabiatus,-a,-um (adj.A), 2-labiatus,-a,-um (adj.A);

- petala 5, aequalia v. subbilabiata (B&H), the petals 5, equal or somewhat two-lipped.

- calycis lobi tubo breviores v. si longiores imbricati v. bilabiati (B&H), the lobes of the calyx shorter than the tube, or if longer, imbricate or two-lipped.

- calyx distinctius bilabiatus et corolla calyce brevior (B&H), the calyx more distinctly two-lipped and the corolla shorter than the calyx.

- calyx cylindricus, obtuse 4-dentatus, subbilabiatus (B&H), the calyx cylindric, obtusely 4-dentate, nearly bilabiate..

- corollae 2-labiatae v. limbo profunde 5-fido, the corollas 2-lipped or with the limb deeply 5-fid.