Home
Perennial herb with few to several stems usually arising from a creeping rhizome; stems ascending, simple or branched, 0.25-0.6(-0.8) m tall, shortly pilose to tomentose. Leaves usually crowded and larger at the base of the plant, the lower petiolate, the upper subsessile; blade simple to sublyrate or rarely runcinate, oblong to broadly obovate in outline, 30-100 x 8-45 mm, subglabrous to pilose, gland-dotted beneath, apex obtuse to rounded, base truncate to auriculate, margin irregularly crenate-dentate. Inflorescence of several to many verticils, widely spaced below, denser above; verticils 6(-8)-flowered. Calyx shortly hispid, tubular-campanulate, up to 13 mm long in fruit; upper lip with 3 acuminate teeth 0.5-2 mm long, subequal or the central tooth slightly shorter than the outer two. Corolla pale blue or mauve to purple, rarely white, (10-)14-26 mm long; tube (6-)7-18 mm long; upper lip straight, 4-5 mm long; lower lip 4.5-7 mm long.
Perennial herb, 0.25-0.80 m high; rhizome creeping; ascending; shortly pilose to tomentose. Leaves petiolate, simple, sublyrate or runcinate, oblong to broadly obovate, 30-100 x 8-45 mm, apex obtuse to rounded, base truncate to auriculate, margins irregularly crenate-dentate; subglabrous to pilose, gland-dotted beneath. Inflorescence simple; verticillasters several to many, widely spaced below, denser above, each 6(-8)-flowered. Flowers pale blue, mauve or purple. Calyx shortly hispid, tubular-campanulate, up to 13 mm long in fruit. Corolla: tube 7-18 mm long; lower lip up to 7 mm long. Flowering time Nov.-Apr.
Shortly hairy perennial to 80 cm from a creeping rhizome. Leaves usually crowded below, obovate to lyrate, toothed. Flowers in verticils, calyx shortly hairy, corolla pale blue to purple, rarely white, 10-26 mm long.
