Rhodanthe polygalifolia

Erect, glabrous annual to 30 cm high. Leaves alternate or the lower ones opposite, linear, lanceolate or oblanceolate, 10–60 mm long, 1–7 mm wide, often somewhat subamplexicaul, glabrous but with sessile glands, often glaucous. Capitula apparently heterogamous, hemispherical, 7–17 mm long, solitary. Involucral bracts several-seriate, glabrous or with a few marginal hairs, outer bracts short, brown, innermost bracts with hyaline-winged claws and spreading yellow (rarely white) laminae 4–12 mm long. Florets numerous, bisexual (or innermost functionally male). Cypselas c. 3 mm long, densely silky-hairy; pappus persistent, of 20–25 long-plumose bristles Flowers about Aug.–Oct.