]> GH barcode-00395187 United States of America California along a small drainage, burned over in 2012, rocky serpentine soil outcrop on the north side of State Highway 20, 1/2 mile east of Lake County Line, 12 miles (air) east-northeast of Clear Lake (town), 17 miles (air) west of Williams Castilleja foliolosa Hooker & Arnott Hooker & Arnott 2016-09-15 11:01:21 L. Ahart