Parent species: Caltha leptosepala
Synonyms: Caltha biflora ssp. howellii Caltha biflora Caltha howellii Caltha leptosepala ssp. biflora Caltha leptosepala var. biflora
Counties: Alpine Butte El Dorado Fresno Humboldt Lassen Madera Mariposa Mono Nevada Placer Plumas Shasta Sierra Siskiyou Tehama Trinity Tulare Tuolumne