Shrubs, erect to rounded-spreading, 8–60 dm; developing enlarged woody lignotubers. Stems 1–10+, erect to arching or spreading, ?branched, terete or decurrently grooved?; bark of red brownish papery layers, weathering gray; short shoots present or absent; hirtellous, pilose, or glabrous. Leaves persistent, cauline, alternate, sometimes opposite, juvenile 1–2-pinnatifid, mature simple; stipules reduced or absent; petiole present or absent; blade linear to terete or linear-oblanceoloid, (0.2–)0.3–1.4(–2.6) mm, leathery or not, ?base persistent, clasping, truncate?, margins revolute, entire, abaxial surface glabrous or sessile-glandular. Inflorescences terminal, 2–400+-flowered, panicles ?well branched, pyramidal? or racemes or spikes ?reduced to cylindric?, glabrous or hirtellous; bracts present; bracteoles present. Pedicels absent or relatively short. Flowers 2–6 mm diam.; hypanthium cylindric to campanulate, ?inner rim annular gland thickened, undulate?, 0.6–2.4 mm, glabrous or hirtellous; sepals 5, erect to reflexed, ?valvate?, broadly ovate to semiorbiculate; petals 5, white becoming rusty brown, obovate-orbiculate or elliptic to ovate, ?base clawed?; stamens 10 or 15 in groups of 2 or 3 alternate with petals, shorter than petals; carpels 1(or 2), distinct, ?obliquely truncate distally?, glabrous or sericeous, styles lateral, ?each bending over ovary, erect distally?, ?stigmas capitate to truncate?; ovules 1(or 2). Fruits achenes, 1(or 2), obovoid or ellipsoid, 1.1–1.8(–2.4) mm, hirtellous distally (exposed part); hypanthium persistent; sepals persistent, +/-spreading; styles not persistent. x = 9.