ERIOGONUM (from erion, wool, and gonu, a joint; joints of the stems downy). ORD. Polygonaceae. A genus of rather pretty summer-flowering hardy annuals and herbaceous or somewhat woody perennials. There are about 100 species, natives of North-western America. Flowers perfect, involucrate; stamens nine, upon the base of the perianth. Leaves radical, alternate or verticillate, entire, without stipules. They thrive in a loamy-peat soil, and may be increased by division or seed. ERIOGONUM compositum (compound). fl. dull white or rose-coloured; l. stalked, densely tomentose beneath, greener above, oblongovate, cordate at base; peduncles erect, stout, 6in. to 18in. high, nearly glabrous. Perennial. (B. R. 1774.) ERIOGONUM corymbosum (corymbose). fl. white to deep rose, rarely yellow. l. ovate to oblong-lanceolate; umbel stiff, broadly cymose; involucres mostly sessile. h. 1ft. Perennial. ERIOGONUM stellatum (starred). fl. yellow, frequently in loose compound umbels. l. two or three, arising from the scape, exactly resembling those of Statice oleifolia, slightly downy, and only so beneath. h. 6in. to 12in. Interior of North-west America. (H. F. B. A. ii. 177.) ERIOGONUM umbellatum (umbellate). fl. yellow. l. obovate to oblongspathulate or oblanceolate, more or less tomentose, especially beneath. h. 3in. to 12in.