Ivesia baileyi S. Wats.

Ivesia baileyi S. Wats. Bot. King's Expl. 90. 1871
Poteniilla Baileyi Greene, Pittonia 1 : 105. 1887.
Horkelia Baileyi Rydb. Mem. Dep. Bot. Columbia Univ. 2 : 154. 1898.
Perennial, with a taproot and cespitose caudex ; stems several, decumbent or ascending, 1-3 dm. long, finely pubescent or glabrate, somewhat leafy ; stipules obovate, entire, about 5 mm. long ; basal leaves many, 1-2 dm. long, pinnate ; leaflets 4-6 rather distant pairs, finely pubescent or glabrate, 5-10 mm. long, thin, obovate or orbicular, generally oblique, deeply incised into rounded-obovate segments ; stem-leaves smaller, with 2-3 pairs of leaflets ; inflorescence rather open and truly cymose, with slender pedicels; hypanthium 4-5 mm. broad, slightly glandularvillous, saucer-shaped, in fruit evidently 5-angled with a disk ; bractlets linear-oblong, one-third to two-thirds the length of the broadly ovate sepals, which are 2 mm. long ; petals yellow, spatulate, shorter than the sepals ; stamens 5, with short filaments, which incline toward the 4 to 8 pistils.
Type locality : Wright's Canon, West Humboldt Mountains, Nevada,
Distribution ; Interior of Oregon and Nevada.