Wyethia
(so called after N. B. Wyeth, the discoverer of this genus in the mountains of North America). SYN. Alarconia, Melarhiza. ORD. Compositae. A genus of seven species of hardy, perennial, North American herbs, with a thick caudex. Flower-heads yellow, large, heterogamous, radiate; involucre hemispherical, the bracts in two or three series, scarcely unequal; receptacle flat or slightly convex; ray florets ligulate, spreading; disk florets shortly five-cleft at apex; achenes glabrous. Leaves radical or alternate, entire. Stem often simple and one-headed. Only one species calls for mention here. For culture, see Helianthus.
W. angustifolia (narrow-leaved). fl.-heads yellow, solitary; scales of involucre mostly foliaceous, lanceolate or broader, equalling the disk; involucre fully 1in. high, loose or spreading; rays numerous, 1 1/2in long. Autumn. l., radical ones stalked, elongated-lanceolate, tapering to both ends, occasionally dentate or serrate, often undulate; cauline ones sessile, broader. h. 6in. to 2ft. United States.