. 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. Gknus 102. THISTLE FAMILY. 12. Senecio canus Hook. Silvery Ground- sel. Fig. 4621. .T. canus Hook. FI. Bor. Am. 1: 333. pi. 116. 1833. 5. Purshianus Nutt. Trans. Am. Phil. Soc. (II) 7: 412, 1841. Perennial, densely and persistently white- tomentose to the inflorescence; stems slender, usually tufted, 6-18' high. Basal and lower leaves spatulate or oval, entire,
. 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. Gknus 102. THISTLE FAMILY. 12. Senecio canus Hook. Silvery Ground- sel. Fig. 4621. .T. canus Hook. FI. Bor. Am. 1: 333. pi. 116. 1833. 5. Purshianus Nutt. Trans. Am. Phil. Soc. (II) 7: 412, 1841. Perennial, densely and persistently white- tomentose to the inflorescence; stems slender, usually tufted, 6-18' high. Basal and lower leaves spatulate or oval, entire, or rarely some- what repand, very obtuse, 1-2' long, narrowed into petioles; upper leaves oblong or spatulate, obtuse or acute, mostly sessile, smaller, entire or dentate; heads several or numerous, 8"-io" broad, usually slender-peduncled; involucre campanulate, or at first short-cylindric, about 5" high, its bracts linear-lanceolate, acute, spar- ingly tomentose, or glabrate, usually with no exterior smaller ones; rays 8-12; achenes gla- brous, at least below; pappus white. In dry soil, Manitoba to North Dakota, Nebraska, west to British Columbia and California. Recorded from Minnesota. 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
