. 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 102d meridian. Botany; Botany. Helianthus occidentalis Riddell. Sunflower. Fig. 4468. Few-leaved H. occidentalis Ridd. Suppl. Cat. Ohio PI. 13. 1836. H. illinoensis Gleason, Ohio Nat. 5 : 214. 1904. H. occidentalis illinoensis Gates, Bull. Torr. Club 37: 81. 1910. Perennial; stems appressed-pubescent or sometimes nearly glabrous, slender, mostly simple, i°-3° high. Leaves mostly basal, or be
. 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 102d meridian. Botany; Botany. Helianthus occidentalis Riddell. Sunflower. Fig. 4468. Few-leaved H. occidentalis Ridd. Suppl. Cat. Ohio PI. 13. 1836. H. illinoensis Gleason, Ohio Nat. 5 : 214. 1904. H. occidentalis illinoensis Gates, Bull. Torr. Club 37: 81. 1910. Perennial; stems appressed-pubescent or sometimes nearly glabrous, slender, mostly simple, i°-3° high. Leaves mostly basal, or below the middle of the stem, firm, ovate or oblong-lanceolate, obtuse or obtusish at the apex, narrowed at the base, 3-5-nerved, serrulate or entire, scabrous above, pubescent beneath, with slender petioles about as long as the blades; stem usu- ally bearing 1 or 2 pairs of small distant leaves; heads several or solitary, ii'-2i' broad; involucre hemi- spheric, its bracts lanceolate or ovate-lanceolate, acute or acuminate, generally ciliate, appressed; receptacle convex, its chaff acute; disk yellow; rays 12-15; achenes truncate and pubescent at the summit; pappus of 2 lanceolate-subulate awns. In dry soil, Ohio to Minnesota, south to Florida and Missouri. Helianthus Dowellianus M. A. Curtis, which differs in being stouter, the stem leafy, the leaves merely puberulent, and ranges from the District of Columbia to Georgia, appears to be a race of this Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Britton, Nathaniel Lord, 1859-1934; Brown, Addison, 1830-1913. New York, Scribner
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
