Description
Seed Colour: Reddish brown
Seed Length: 1 - 2mm, 1 mm or lessSeed Sculpture: Pappilate, Reticulate
Seed Shape: Reniform (Kidney shaped), Wedge
Plants annual. Stems erect, simple or branched, (9.5-)25-40(-91) cm; internodes glabrous or mid-stem ones densely stipitate-glan-dular. Leaves: sheath (3-)4-9 mm, 2-3 times as long as wide; blade 3-veined, linear to oblanceolate, 10-60 mm, margins scabrous. Inflorescences capitate; inflorescence bracts and involucel bracetoles enclosing flowers, broadly ovate, brown-scarious, apex mucronate. Pedicels 0.1-3 mm. Flowers: sepals (8-)12-15 mm; petals pink or purplish, primary veins 3, (3-)5-6 veins darkly colored near base of blade, apex 2-fid, sometimes obcordate. Seeds helmet-shaped, 1-1.4 mm, covered with conical papillae
Source: See Webs Links Flora of North America
