Shrubs or subshrubs, rounded to spreading, not scapose, (0.5-)2-8(-13) × (1-)3-15(-18) dm, thinly pubescent or glabrous and green, yellowish green or infrequently grayish, occasionally papillate. Stems spreading, without persistent leaf bases, up to 1/3 height of plant; caudex stems absent or compact; aerial flowering stems spreading, slender, solid, not fistulose, (0.05-)0.1-0.8 dm, thinly pubescent or glabrous. Leaves cauline, 1 per node or fasciculate; petiole 0.05-0.1 cm, tomentose to floccose or glabrous; blade linear to linear-oblanceolate, (0.5-)2-6 × (0.03-)0.1-0.3 cm, densely to thinly white-tomentose abaxially, thinly so or glabrous and green adaxially, margins tightly revolute. Inflorescences cymose, usually compact, (0.1-)2-12(-15) × (1-)4-15(-30) cm; branches dichotomous, thinly pubescent or glabrous; bracts 3, scalelike, triangular, (0.5-)1-4 mm. Peduncles absent or erect, 0.05-0.2 cm, glabrous. Involucres 1 per node, narrowly turbinate, 2-4(-4.5) × 1-2 mm, glabrous; teeth 5, erect, 0.3-0.7 mm. Flowers 2.5-4 mm; perianth white, glabrous; tepals connate proximal 4, essentially monomorphic, oblong to narrowly obovate; stamens long-exserted, (2-)3-6 mm; filaments subglabrous or sparsely puberulent proximally. Achenes brown, (2.5-)3.5-4 mm, glabrous. 2n = 40.
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