Perennial herb or subshrub up to c. 60 cm. tall; stems woody in lower parts, erect or ascending, branches us. lfy with small axillary branchlets, ± uniformly or sts bifariously pubescent with short crisped white hairs. Lvs us. rather distant, lamina 5-15-(25) × 3-10 mm., rhomboid-cuneate to ovate to suborbicular with 1-3 pairs of obtuse to subacute teeth and acute to obtuse triangular terminal lobe, cuneately narrowed into petiole 1-4 mm. long, glab., margins us. flat, sts somewhat thickened and revolute. Infl. much-branched with small simple bracts or reduced to a simple raceme with fls in axils of little-differentiated lvs; pedicels 1-3-(6) mm. long, < lvs. Calyx 4-8 mm. long, glab. or nearly so, unevenly divided with deepest clefts up to 1/2 length; lobes acute to obtuse, midribs thickened. Corolla white, 15-20 mm. long; tube much > calyx; lower lip distinctly > upper, lobes deeply emarginate, up to 8 mm. wide; lobes of upper lip entire, obtuse, 3-4 mm. wide. Anthers red-brown, conspicuously hairy, awns us. markedly unequal, lower 2 very long. Capsule distinctly > calyx when mature, 6-8-(10) × 2-3 mm., narrow-oblong, narrowed towards base and apex, densely setose at tip, at least at first; seeds ∞, c. 2 mm. long.

Perennial herb or subshrub up to 60 cm tall; stems woody below, erect or ascending; branches usually leafy with small axillary branchlets, ± uniformly or sometimes bifariously hairy with short crisped white hairs. Lvs with petiole 1-4 mm long. Lamina 5-15-(25) × 3-10 mm, ± rhomboid to ovate or suborbicular with 1-3 pairs of obtuse to subacute teeth and acute to obtuse triangular terminal lobe, glabrous. Fls on pedicels 1-3-(6) mm long. Calyx 4-8 mm long, glabrous or nearly so, divided with deepest clefts to 1/2 way. Corolla white, 15-20 mm long. Anthers red-brown, conspicuously hairy; awns usually markedly unequal, the lower 2 very long. Capsule distinctly > calyx, 6-8-(10) × 2-3 mm.