. 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. leafy, the leaves merely puberulent, and ranges from the District of Columbia to Georgia, appears to be a race of this species. Genus 66. THISTLE FAMILY 9. Helianthus laevigatus T. & G. Smooth Sunflower. Fig. laevigatus T. & G. Fl. N. A. 2: 330. 1842. Stems slender, from a perennial root, simple orlittle branched, glabrous, or somewhat glaucous,2°-6° high. Lea
. 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. leafy, the leaves merely puberulent, and ranges from the District of Columbia to Georgia, appears to be a race of this species. Genus 66. THISTLE FAMILY 9. Helianthus laevigatus T. & G. Smooth Sunflower. Fig. laevigatus T. & G. Fl. N. A. 2: 330. 1842. Stems slender, from a perennial root, simple orlittle branched, glabrous, or somewhat glaucous,2°-6° high. Leaves nearly all opposite, firm, gla-brous, lanceolate, short-petioled, or the upper sessile,serrulate or entire, pale beneath, acuminate, nar-nowed at the base, 3-6 long, i-i¥ wide, the mar-gins sometimes roughish-ciliate; heads few or soli-tary, I-ii broad; involucre campanulate, its bractslanceolate or ovate-lanceolate, firm, ciliolate, thetips of the outer ones spreading; rays S-io; diskyellow; chaff linear; achenes slightly pubescent atthe summit; paj)pus of 2 lanceolate or ovate owns,with or without 2 intermediate scales. In dry soil, mountains of Virginia, West Virginiaand North Carolina.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
