Calochortus concolor (Baker) Purdy Calochortus concolor (Baker) Purdy in Proc. Calif. Acad. Sci., ser. 3, 2: 135. 1901 sec. Espejo-Serna & López-Ferrari 2008≡Calochortus luteus var. concolor Baker in Garden 48: 440. t. 1043. 1895 syn. sec. Espejo-Serna & López-Ferrari 2008