Potentilla flavovirens

Potentilla flavovirens Rydberg, sp. nov
Annual or biennial, whole plant light-green ; stem strict, 1.5-3 dm. high, densely and softly pubescent, branched above with strongly ascending branches ; basal leaves ternate ; petioles 1-3 cm. long, softly pubescent ; leaflets cuneate-obovate, 5-15 cm. long, coarsely crenate, softly hirsute, and slightly glandular-pruinose ; stem-leaves similar but leaflets more oblong-obovate, often 2 cm. long, scarcely glandular, the upper short-petioled ; stipules ovate-lanceolate, often almost 1 cm. long ; infloresence often corymbiform ; hypanthium hemispheric, softly pubescent, in fruit 4-5 mm. broad ; bractlets lanceolate, about 4 mm. long, nearly equaling the ovate sepals ; petals yellow, ovate, scarcely half as long as the sepals ; stamens about 20 ; pistils very numerous ; styles short and fusiform.
Type collected in the mountains of northern Lower California, in 1885, C. R. Orcutt (herb. Columbia Univ.).