Mentha spicata L. subsp. spicata

Stems glabrous or sparsely hairy. Lvs with hairs confined to veins on lower surface; lamina rounded to cordate at base. Infl. glabrous or sparsely hairy; spikes slender or fairly stout, often interrupted, especially in lower part. Corolla almost glabrous outside. Nutlets present or 0.

[From: Webb et al. (1988) Flora of New Zealand. Volume 4.]