Plants mostly (2) 4–8 (13) dm tall and tall, round to spreading shrubs not scapose, thinly pubescent or glabrous and green, yellowish-green or infrequently grayish, occasionally papillate; stems spreading or prostrate, without persistent leaf bases, up to 1⁄3 height of plant when shrubby, the caudex stems absent or compact, the aerial flowering stems spreading or prostrate, slender, solid, not fistulose, (0.05) 0.1–0.8 dm long, thinly pubescent or glabrous; leaves cauline, 1 per node or fasciculate, the petioles 0.05–0.1 cm long, tomentose to floccose or glabrous, the blades linear to linear-oblanceolate, (0.5) 2–6 cm long, (0.03) 0.1–0.3 cm wide, densely to thinly white-tomentose abaxially, thinly so or glabrous and green adaxially, the margins tightly revolute; inflorescences cymose, usually compact, (0.1) 2–12 (15) cm long, (1) 4–15 (30) cm wide, the branches dichotomous, thinly pubescent or glabrous, the bracts 3, scalelike, triangular, (0.5) 1–4 mm long; peduncles absent or erect, 0.05–0.2 cm long, glabrous; involucres 1 per node, narrowly turbinate, 2–4 (4.5) mm long, 1–2 mm wide, glabrous, the teeth 5, erect, 0.3–0.7 mm long; flowers 2.5–4 mm long, the perianth white, glabrous, the hypanthium 1⁄4 length of perianth, essentially monomorphic, oblong to narrowly obovate, the stamens long-exserted, (2) 3–6 mm long, the filaments subglabrous or sparsely puberulent proximally; achenes brown, (2.5) 3.5–4 mm long, glabrous. 2n = 40.