Perennials. Stems erect to ascending, often paniculately branched distally, (1.2-)3-7.5 (-12) dm, trichomes sessile or subsessile. Basal leaves absent on older plants. Cauline leaves petiolate or (distal) sessile; petiole 0.5-1 cm; blade oblanceolate, lanceolate to oblong, or elliptic, (1-)2-5.5 (-7) cm × (4-)7-20(-30) mm (smaller distally), base cuneate, margins sinuately lobed or dentate, surfaces with minutely stalked to subsessile trichomes. Racemes slightly to considerably elongated in fruit. Fruiting pedicels usually divaricate, rarely slightly descending, (2-)3-6(-9) mm. Flowers: sepals slightly spreading, 1.2-2 × 0.4-0.7 mm; petals (slightly spreading), spatulate, (slender), 1.8-2.5 × 0.7-1 mm, claw distinctly differentiated from blade, 0.5-1 mm; filaments spreading, 2.2-3 mm, longer than petals; anthers 0.3-0.5 mm. Fruits divaricate or slightly descending, straight, subtorulose, linear, terete, 0.6-1.4(-1.7) cm × 0.5-0.8 mm; ovules 16-24 per ovary; style 0.7-1(-1.5) mm. Seeds uniseriate, 0.8-1 × 0.4-0.6 mm. Flowering mid Jul-mid Nov. Shaded talus, ravines, granite outcrops, rock crevices, bluffs, steep canyons, limestone slopes, oak-juniper communities, igneous slopes; 1100-2300 m; Ariz., N.Mex., Tex.; Mexico (Chihuahua, Coahuila).

Plant: Perennial forb to 60 cm; herbage soft-canescent with forked or stellate hairs Leaves: leaves alternate, deeply toothed Flowers: flowers white, in lateral racemes Fruit: a filiform capsule, <2cm long.