. An illustrated flora of the northern United States, Canada and the British possessions : from Newfoundland to the parallel of the southern boundary of Virginia and from the Atlantic Ocean westward to the 102nd meridian. 4S0 COMPOSITAE. Vol. 6. Helianthus scaberrimus Ell. Stiff Sun-flower. Fig. 4466. H. scaberrimus Ell. Bot. S. C. & Ga. 2: 423. rigidus Desf. Cat. Hort. Paris, Ed. 3, 184. 1829. Perennial; stems simple or little branched, hispidor scabrate, i°-8° high. Leaves thick, coriaceous,serrate or serrulate, very scabrous on both sides, 2-ylong, ¥-2 wide, acute at the apex,
. An illustrated flora of the northern United States, Canada and the British possessions : from Newfoundland to the parallel of the southern boundary of Virginia and from the Atlantic Ocean westward to the 102nd meridian. 4S0 COMPOSITAE. Vol. 6. Helianthus scaberrimus Ell. Stiff Sun-flower. Fig. 4466. H. scaberrimus Ell. Bot. S. C. & Ga. 2: 423. rigidus Desf. Cat. Hort. Paris, Ed. 3, 184. 1829. Perennial; stems simple or little branched, hispidor scabrate, i°-8° high. Leaves thick, coriaceous,serrate or serrulate, very scabrous on both sides, 2-ylong, ¥-2 wide, acute at the apex, narrowed at thebase, the lower ovate or ovate-oblong, petioled, theupper lanceolate or oblong-lanceolate, sessile or short-petioled, all opposite, or the uppermost bract-like andalternate; heads solitary or few, 2-3 broad; invo-lucre hemispheric, its bracts ovate, acute or obtusish,ciliate, appressed; disk purple or brown; receptacleconvex, its chaff obtuse; rays 15-25, light yellow;achenes more or less pubescent, oblong-obovate;pappus of 2 broad scales or of 2-4 stout awns. Prairies, Illinois to Minnesota. Iowa, Kansas, Georgiaand Texas. 7. Helianthus subrhomboideus Rydb. Rhombic-leaved Sunflower. Fig. 4467. Helianthus s
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
