Shrubs, erect to spreading, 6-15(-20) × 5-30 dm, glabrous and cinereous, reddish. Stems spread-ing to erect, occasionally with persistent leaf bases, up to 3/4 or more height of plant; caudex stems absent; aerial flowering stems erect, stout, solid, not fistulose, 0.5-1(-1.5) dm, glabrous. Leaves cauline, 1 per node; petiole 0.1-0.5 cm, tomentose; blade linear to narrowly oblong, 2-4(-5) × 0.1-0.4(-0.6) cm, white-tomentose abaxially, cinereous to glabrate and greenish adaxially, margins often revolute. Inflorescences cymose, 5-10 × 5-15(-20) cm; branches dichotomous, glabrous; bracts 1-3, leaflike, lanceolate to oblong, 0.5-2 × 0.3-1.5 cm. Peduncles absent or erect, stout, 0.1-0.5 cm, cinereous. Involucres 1 per node, campanulate, 2-3 × 2.5-4 mm, cinereous; teeth 5-7, erect, 0.5-1.5 mm. Flowers 2-3.5(-4) mm; perianth white to pinkish, villous abaxially; tepals connate proximally, monomorphic, oblanceolate to narrowly obovate; stamens exserted, 3-5 mm; filaments glabrous. Achenes brown, 2.5-3.5 mm, glabrous. 2n = 40.
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