I.C. Hedge

Annual ± slender herbs with simple petiolate crenate leaves, pilose. Inflorescence of long-pedunculate distant cymes arising from leaf axils. Calyx 18-20-veined, clearly oblique-gibbous, inflated at base, indistinctly bilabiate; tube without an annulus; throat straight or weakly oblique. Corolla blue, white or mauve, bilabiate, ± included in calyx. Stamens 4, didynamous, posterior pair longer than anterior. Nutlets ± globose in outline, tuberculate, with a large curved-concave ventral areole.

Monotypic. Scarcely different from Nepeta, but with a 18-20 veined calyx clearly gibbous and, in fruit, markedly inflated at its base.

Lower Taxon

• Drepanocaryum sewerzowii (Regel) Pojark.

Related Synonym(s):

• Nepeta sewerzowii Regel = Drepanocaryum sewerzowii (Regel) Pojark.