Calyptridium parryi Calyptridium parryi var. hesseae Calyptridium parryi subsp. nevadense Cistanthe parryi var. arizonica Cistanthe parryi var. hesseae Cistanthe parryi var. nevadensis Calyptridium parryi var. arizonicum
Taxonomic data from World Flora Online, accessed June 20, 2024