California Horkelia

Horkelia californica Cham. & Schlecht. Linnaea 2 : 26. 1827
Sibhaldia californica Spreng. Syst. 42 : 341. 1827.
Horkelia grandis H. & A. Bot. Beech. Voy. 339. 1838.
Poieniilla califorfiica Greene, Pittonia 1 : 100. 1887.
Poieniilla californica carmeliana Jepson, Fl. W. Middle Calif. 282. 1901.
Root perennial ; stems stout, 0.5-1 m. high, densely glandular and very fragrant, as well as the foliage, leafy ; basal leaves numerous, long-petioled, pinnate ; leaflets 5-10 pairs ; stem-leaves smaller, the leaflets more crowded, all densely glandular-hirsute ; leaflets 2-5 cm. long, broadly obovate or orbicular in outline, toothed and incised, .sometimes 3-5-cleft with mostly acute teeth, the upper often confluent; inflorescence open, cymosedichotomous ; pedicels short, 2-5 mm. long ; hypanthium campanulate, in fruit about 1 cm. in diameter, densely glandular and veined,* often purpl etinged ; bractlets 5-10 mm. long, ribbed, ovate and generally 3-toothed at the apex, the middle tooth the longest, somewhat exceeding the ovate, acute sepals ; bractlets and sepals generally erect in fruit ; petals white, strap-shaped, oblong, much shorter than the sepals ; stamens 10, with oblong filaments and anthers ; stipules about 1 cm. long, ovate, generally more or less toothed.
Type locality : San Francisco, California. Distribution : Central California, near the coast.

Horkelia californica (syn: Potentilla californica), known by the common name California horkelia, is a species of flowering plant in the rose family.

It is endemic to California, where it grows on scrubby coastal and inland mountain slopes, primarily in the California Coast Ranges and western Sierra Nevada foothills.