Perennial, erect herb, 0.15-1.00 m high; rhizome short and horizontal, bearing clusters of fusiform roots; stems annual, single to few with interpetiolar ridges at nodes; hispid-villous with longish spreading hairs. Leaves sessile or lower leaves shortly petiolate, deltoid-lanceolate or oblong-lanceolate to oblong, 20-50 x 6-18 mm, base truncate to rounded, apex rounded to obtuse, margins crenate, slightly thickened or inrolled; upper surface strigose with appressed hairs, usually bulbous-based. Inflorescence simple, lax below, denser above; verticillasters 4-8-flowered. Flowers white. Calyx fairly densely appressed-hispid. Corolla: tube 5-6 mm long; upper lip ascending; lower lip purplish-spotted, deflexed. Flowering time Nov.-Jan.
Perennial herb, 0.15-1.00 m high. Stems erect, with interpetiolar ridges. Leaves sessile or lower ones shortly petiolate; blade narrowly deltoid-ovate or narrowly oblong-ovate to oblong or ovate-deltoid, 20-50 x 6-18 mm, base rounded to subtruncate, apex rounded to obtuse, margins crenate, strigose. Flowers: verticils 4-8-flowered; calyx densely hispid-villous; corolla with tube 5-6 mm long, upper lip 2.5-3.0 mm long, lower lip 7-8 mm long; white usually with purplish spots on lower lip; Nov.-Jan.