an erect or ascending much-branched annual, 1 1/2–3 ft. high; stems terete, pilose; leaves oblong, 1–3 in. long, 1/2–1 in. wide, mucronate, with numerous long soft hairs on both surfaces; petiole 2–6 lin. long, slightly amplexicaul at the base; heads terminal, solitary or 2–3 together, globose, 6 lin. in diam., many-flowered; rhachis villous; bracts ovate-triangular, acuminate, mucronate; bracteoles twice as long as the bracts, oblong, acute, very concave, crested on the back; perianth-segments 4–5 lin. long, woolly, narrowly lanceolate, keeled, white or purplish; stamens shorter than the perianth; ovary oblong; style rather long, slender; stigmas 2, linear; utricle ovoid-oblong, white; seed compressed, rostrate, yellowish. null
