Arizona State University Vascular Plant Herbarium (ASU:Plants)
ASU0092209
c86d8520-fafd-41de-8681-5d49fe51b501
185062
Echinocactus polycephalus var. polycephalus Engelm. & Bigelow
Cactaceae
Michael Chamberland
56
1990-03-18
USA, Arizona, Mohave County, Vicinity of Lake Mead; southwest side of mountain on Gregg's Hideout Road; near junction of road to Temple Bar and road to Gregg's Hideout
See boxed specimen; perhaps some introgression with Echinocactus polycephalus var. xeranthemoides; 26 heads to the clump; largest head 11 inches in diameter including spines; clump 33 inches in diameter including spines; number of ribs per head on following sides of clump: N:15, S:15, E:17, W:14, Center:14
flowers & fruit
See boxed specimen; photo; township info incomplete