Soft Cinquefoil

Potentilla camporum Rydberg, sp. nov
Perennial, with a short caudex ; stem simple, strict, 3-4 dm. hig^h, hirsute with spreading or reflexed hairs ; basal leaves 7-foliolate ; petioles 6-10 cm. long, hirsute ; leaflets obovate or broadly oblanceolate, 2-5 cm. long, cut-toothed with lanceolate teeth, densely hirsute-strigose above, white-tomentose and silky beneath ; stem-leaves smaller, the uppermost 3-foliolate ; stipules lanceolate, entire ; hypanthium hirsute, in fruit 6 mm. wide ; bractlets lanceolate, 34 mm. long ; sepals ovate-lanceolate, 4-5 mm. long; petals obcordate, 5-6 mm. long ; stamens 20 ; pistils many ; styles filiform.
Type collected in the Black Hills of South Dakota, Miss Pratt 93 (herb. Columbia Univ.). Distribution : Black Hills of South Dakota to Manitoba.

Potentilla pulcherrima Lehm. Stirp. Pug. 2 : 10. 1830
Potentilla Pennsylvania pulcherrima T. & G. Fl N. Am 1 : 438. 1840 Potentilla Hippiana pulcherrima S. Wats. Proc. Am. Acad. 8 : 555. 1873.
Perennial, with a tap-root and short caudex ; stems erect or ascending, 4-6 dm. high, pubescent with ascending hairs ; basal leaves pinnate, with 5-7 approximate leaflets ; petioles 6-15 cm. long, pubescent with ascending hairs ; leaflets oblanceolate, 2-7 cm. long, crenate, green and silky above, densely white-tomentose beneath, the lower two pairs spreading or the lowest reflexed, usuallv very close together ; cyme open and many-flowered ; hypanthium silky-hirsute, in fruit 7 mm. broad; bractlets 4-5 mm. long, lanceolate; sepals ovatelanceolate, acuminate, 5-7 mm. long ; petals obcordate, 6-8 mm. long; stamens 20; pistils
many ; styles filiform.
Type locality: [Not given in the original publication, but supplied in Hooker's Flora.]
IU ^SS^ ^InThe 1 mo^nfainTfrom Saskatchewan and Alberta to Colorado and Utah, but
rare.