Delphinium bakeri (Baker's larkspur) is a perennial herb in the buttercup family (Ranunculaceae). It is endemic to California in the United States, where it is a federally listed endangered species. It is known in the wild from one remaining occurrence near Salmon Creek in Sonoma County, where only seven plants remained as of March, 2006. This endangered species grows from a thickened, tuber-like, fleshy cluster of roots, to a height of 70 cm (26 inches). The leaves occur primarily along the upper third of the stem and are green at the time the plant flowers.