Shrubs, erect, not scapose, 3-10(-12) × 3-6(-8) dm, tomentose or glabrous, grayish or greenish. Stems erect, without persistent leaf bases, up to 1/ 2 or more height of plant; caudex stems absent; aerial flowering stems erect, slender, solid, not fistulose, 0.5-2 dm, tomentose or glabrous. Leaves basal and cauline, 1 per node; petiole 0.1-0.5 cm, mostly tomentose; blade oblanceolate, 0.6-1.5 × 0.2-0.3 cm, tomentose on both surfaces, occasionally slightly less so adaxially, margins plane. Inflorescences cymose, flat-topped and in tiers, 15-40 × 15-40 cm; branches dichotomous, divaricately arranged in a zig-zag pattern, tomentose or glabrous; bracts 3, scalelike, 1-7 mm. Peduncles absent. Involucres 1 per node, turbinate, 2-2.5 × 1.5-2 mm, glabrous; teeth 5, erect, 0.4-0.6 mm. Flowers 2-2.5 mm; perianth white to pale yellow, glabrous; tepals connate proximal 1/ 4 dimorphic, those of outer whorl obovate, those of inner whorl oblong; stamens exserted, 2-4 mm; filaments pilose proximally. Achenes light brown to brown, 2.5-3 mm, glabrous.
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