Slender tufted perennial herb sts with stout woody stock; stems slender, much-branched and rooting at nodes, branches erect, 5-15 cm. tall, slender to filiform, us. densely pubescent with lax flattened white hairs. Lvs sessile, us. rather distant, 4-10-(15) × 2-4-(7) mm., narrow- to ovate-rhomboid with 1-2 pairs of narrow acute teeth and large triangular acute terminal lobe, cuneate at base, glab. or with sparse glandular or non-glandular hairs, margins thickened and revolute. Fls few towards the tips of the branches on slender straight pedicels 5-20 mm. long, us. distinctly > lvs; calyx and pedicels densely pilose with flattened white hairs and long glandular hairs. Calyx 5-8 mm. long, ± evenly divided ?-1/2 way; lobes lanceolate to triangular, acute, margins and midribs thickened and reddish. Corolla white, (10)-15-20 mm. long and diam.; tube much > calyx; lobes of lower lip 4-9 mm. wide, us. deeply emarginate, of upper lip 2-5 mm. wide, entire to emarginate. Anthers golden yellow, marginal hairs ∞, awns us. very unequal, stout. Capsule ± = calyx or much shorter, 3-7 × 2.5-4 mm., broad-oblong to obovate or almost suborbicular, glab. or nearly so; seeds 8-10 per locule, 1-1·5 mm. long.

Slender, tufted perennial herb, sometimes with stout woody stock; stems slender, much-branched; branches erect, 5-15 cm tall, slender to filiform, usually densely hairy with lax flattened white hairs. Lvs sessile, 4-10-(15) × 2-4-(7) mm, narrow-ovate to ovate-rhomboid with 1-2 pairs of narrow acute teeth and large triangular acute terminal lobes, glabrous or with sparse glandular or eglandular hairs. Fls on slender straight pedicels 5-20 mm long. Calyx 5-8 mm long, densely pilose with flattened white, simple hairs and long glandular hairs, divided ?-1/2 way. Corolla white, (10)-15-20 mm long. Anthers golden yellow; marginal hairs numerous; awns usually very unequal, stout. Capsule ± = or much < calyx, 3-7 × 2.5-4 mm.