Plants herbs, erect, not scapose, (3) 3.5–9 dm tall, 0.5–1 dm across; stems spreading, without persistent leaf bases, up to 1/5 height of plant, the caudex stems absent, the aerial flowering stems erect, slender, solid, not fistulose, 1.5–3.5 (4) dm long, glabrous; leaves basal, 1 per node, the petioles (1) 2–4 (6) cm long, tomentose, the blades spatulate to narrowly obovate, 1–3 (4) cm long, 0.3–0.8 (1.3) cm wide, densely white-tomentose on both surfaces, the margins plane; inflorescences elongate cymose-umbellate, 8–45 (50) cm long, 5–10 cm wide, the branches dichotomous, glabrous, the bracts 3–5, scalelike, triangular, 1–2 mm long; peduncles absent or 0.1–0.25 cm long; involucres 2–5 per cluster, turbinate, 3–5 mm long, 2–3 mm wide, rigid, glabrous, the teeth 6–8, erect, 0.5–1 mm long; flowers (1.5) 2.5–3.5 mm long, the perianth dull greenish-white to pale yellow, glabrous, the hypanthium only at base of perianth, the tepals monomorphic, lanceolate to oblong, the stamens exserted, 3–5 mm long, the filaments pilose proximally; achenes light brown, 2.5–3 mm long, glabrous. Continue reading →