Combleaf Cinquefoil

Potentilla pectinisecta Rydb. Bull. Torrey Club 24 : 7. 1897
Perennial, with a short caudex ; stem slender, 3-4 dm. high, ascending, finely silkystrigose or rarely hirsute ; stipules ovate, often toothed ; leaves digitate, nearly all with 5-9 leaflets, appressed-silky on both sides and sometimes slightly tomentulose beneath ; petioles of the basal leaves about 1 dm. long, silky-strigose ; those of the stem-leaves shorter ; leaflets obovate, deeply pectinately divided into oblong or linear segments ; cyme rather dense ; hypanthium appressed-silky, in fruit 6-7 mm. broad ; bractlets linear-lanceolate, shorter than the broadly lanceolate sepals, which are 5-6 mm. long, acuminate ; petals yellow, obcordate, 7-8 mm. long ; stamens 20 ; pistils many ; styles filiform.
Type locality : Not given, but the type was collected near Salt Lake City, Utah, June 10, 1880, M. E.Jones 1765 (herb. N. Y. Bot. Gard.).
Distribution : Utah, Wyoming, and northern Arizona.

Potentilla comosa Rydberg, sp. nov
Perennial, with a short cespitose caudex ; stem ascending or decumbent at the base, about 3 dm. high, loosely white-hirsute ; basal leaves digitately 5-7-foliolate ; petioles conspicuously white-hirsute ; leaflets obovate or elliptic, the larger 3 cm. long, deeply dissected two thirds to the midrib into oblong divisions, loosely hairy on both sides, almost white beneath ; lower stem-leaves 5-foliolate, similar to the basal ones, the upper 3-foliolate ; inflorescence narrow and dense ; hypanthium densely pubescent ; bractlets lanceolate, 2 mm. long ; sepals ovate, about 4 mm. long ; petals rounded-obovate, yellow, about 4 mm. long.
Type collected in Bear Valley, San Bernardino Mountains, in 1894, 5. B. Parish 3152 (TJ. S. Nat. Herb. no. 214369).