Perennial herb, 60-100 cm high,with soft thick-stems, succulent, hairy, aromatic.  Leaves blades, 2.5-4.5 x 2.5-4 cm, thick and soft, broadly ovate, truncate-subcordate at the base, apex obtuse to rounded, margins crenate, both surfaces densely pubescent with glands; inflorescence a raceme 10-30 cm long; flowers bilabiate, corolla 7-9 mm long, lilac to whitish.

Annual or perennial acaulescent herb with a taproot producing numerous fibrous lateral roots. Leaves, glabrous, forming a basal rosette, petioles 2-15 cm long, blades ovate to elliptic, 2.5-25 x 3-12 cm, base abruptly narrow, apex obtuse, margins coarsely dentate; inflorescence a spike spike, linear-cylindrical, 5-25 cm x 6-8 mm, scape 10-30 cm. long; flowers perfect, corolla lobes 0.5-1 mm long, numerous, sessile, green; fruit a capsule ovate-elliptic 3-4 mm long, seeds brown, oblong 1 x 0.7 mm.

Soft-wooded aromatic shrub or tree 1-6m high.  Leaves ovate or ovate-elliptical, 20-40 x 12-25 cm, acute to short acuminate at the apex, deeply and unequally cordate-auriculate at base, margins densely white-ciliate, petiole winged to the apex; inflorescence a spike, whitish to light yellow, pendulous, 10-20 cm x 3-5 mm; fruit, small, three-angled.