]> GH barcode-00395180 United States of America California on the north side of the Canyon Creek Trail, about 300 yards southeast of the foot bridge across Boyce Ravine, trail on the north side of the North Fork of the Yuba River, about 3/4 mile west of Highway 49, about 1 3/4 miles west of Indian Valley Castilleja affinis Hooker f. & Arnott Hooker f. & Arnott 2016-09-15 11:12:59 L. Ahart