Leaves: petiole short stipitate-glandular or sparsely long stipitate-glandular; blade pen-tagonal or heptagonal, deeply lobed. Inflorescences short stipitate-glandular. Flowers: hypanthium obconic, 1.7-3.1 × 1-2.3 mm (1.4 times longer than wide), short stipitate-glandular; sepals 0.5-1.8 mm, apex acute; petals 0.2-0.6 mm wide; styles 0.2-0.6 mm. 2n = 14.

Flowering Jun-Jul. Mixed evergreen forest on limestone, mica schist, granite, or serpentine soils; 100-2200 m; Calif.

Variety erubescens occurs in the Klamath Mountains, middle Sierra Nevada, and Diablo and Santa Lucia mountains.