Cacti named for people from the United States

Comments
Leptocereus rosei 0
Opuntia engelmannii var. lindheimeri 0
Echinocereus dasyacanthus subsp. crockettianus 0
Echinocereus coccineus subsp. rosei 0
Discocactus zehntneri subsp. petrhalfarii 0
Cylindropuntia imbricata subsp. lloydii 0
Cylindropuntia alcahes subsp. mcgillii 0
Ferocactus cylindraceus subsp. eastwoodiae 0
Echinocereus reichenbachii subsp. albertii 0
Echinocereus viridiflorus subsp. davisii 0
Turbinicarpus schmiedickeanus subsp. dickisoniae 0
Ferocactus cylindraceus subsp. lecontei 0
Pfeiffera monacantha subsp. kimnachii 0
Thelocactus hexaëdrophorus subsp. lloydii 0
Cylindropuntia alcahes subsp. burrageana 0
Mammillaria deherdtiana subsp. dodsonii 0
Echinopsis backebergii subsp. wrightiana 0
Weberocereus rosei 0
Stenocereus treleasei 0
Selenicereus murrillii 0
Selenicereus nelsonii 0
Sclerocactus whipplei 0
Sclerocactus wrightiae 0
Selenicereus anthonyanus 0
Selenicereus dorschianus 0