Haplopappus diplopappus subsp. diplopappus
Pyrrocoma reticulata Aster villiger Haplopappus diplopappus var. diplopappus Aster diplopappus Aster venosus Aster retinervius Haplopappus reticulatus Haplopappus peteroanus Haplopappus pallidus Diplopappus spinulosus
World Flora Online, http://www.worldfloraonline.org/, accessed June 20, 2024