Calochortus splendens var. major Calochortus splendens var. ruber Calochortus davidsonianus Calochortus splendens unr. atroviolaceus Calochortus splendens var. rubra Mariposa splendens Calochortus splendens var. atroviolaceus
World Flora Online, http://www.worldfloraonline.org/, accessed June 20, 2024