Haplopappus
(from haploos, simple, and pappos, adown; in reference to the absence of the outer pappus). SYN. Aplopappus. ORD. Compositae. A genus containing sixty species of perennial herbs or sub-shrubs, natives of North America, from California to Texas and Mexico, Chili and Patagonia. Flower-heads yellow, large or medium; pappus often reddish, rarely white; achenes glabrous or silky-villous. Leaves alternate, entire, or rigidly ciliate-dentate, rarely pinnatifid. H. spinulosus, perhaps the only species yet in cultivation, is a very ornamental sub-shrub, of easy culture in ordinary garden soil. It may be increased by divisions, or by seeds. H. spinulosus (spiny). fl. heads bright golden yellow, 1in. or more across. August. l. hoary, deeply pinnately cut into linear segments. h. 6in. to 18in. Rocky Mountains, 1874. (B. M. 6302.)