. 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. T. & G. Fl. N. A. 1: 447. 1840. pentandra S. Wats, Proc. Am, P. pentandra Engelm. Potentilla rivalis var. Acad. 8: 553. 1873. Similar to the preceding species, erect, hirsute, i°-4° high, simple at the base, much branched above. Stipules lanceolate, somewhat foliaceous, dentate or entire; basal and lower leaves slender-petioled, 3-foliolate, with the lower
. 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. T. & G. Fl. N. A. 1: 447. 1840. pentandra S. Wats, Proc. Am, P. pentandra Engelm. Potentilla rivalis var. Acad. 8: 553. 1873. Similar to the preceding species, erect, hirsute, i°-4° high, simple at the base, much branched above. Stipules lanceolate, somewhat foliaceous, dentate or entire; basal and lower leaves slender-petioled, 3-foliolate, with the lower pair of leaflets parted nearly to the base, so as to appear 4- or 5-foliolate; leaflets oblanceolate or oblong, obtuse at the apex, narrowed or cuneate at the base, incised-dentate, glabrous or sparingly pubescent above, quite pubes- cent beneath, 1-2' long; flowers terminal, in a more or less flat-topped cyme, pale yellow, 2"-4" broad; calyx-lobes ovate, acute, exceeding the small spatu- late petals, and equalling or slightly shorter than the lanceolate bractlets; stamens 5-8; style thickened below; achenes glabrous. In sandy soil, Manitoba to Alberta, Missouri, Ne- braska and Arkansas. June-Sept. 10. Potentilla argentea L. Silvery or Hoary Cinquefoil. Fig. 2236. Potentilla argentea L. Sp. PI. 497. 1753- Stems ascending, tufted, branched, slightly woody at the base, 4'-i2' long, white woolly-pubescent. Stipules lanceolate, acuminate; leaves all but the uppermost petioled, digitately s-foliolate; leaflets oblanceolate or obovate, obtuse at the apex, cuneate at the base, green and glabrous above, white-tomentose beneath, laciniate or incised and with revolute margins, 6"-i2" long; flowers cymose, terminal, pedicelled, yellow, 2"-4" broad; calyx-lobes ovate, acutish, a little shorter than the obovate retuse petals; stamens about 20; style fili- form; achenes glabrous. In dry soil. Nova Scotia and Ontario to North Dakota, south to Washington, D. C,
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
