Sclerocactus johnsonii subsp. erectocentrus

Sclerocactus johnsonii subsp. erectocentrus (J.M.Coult.) M.A.Baker (2016)

🌵 Author(s)	Marc A. Baker
🌵 Basionym	Echinocactus erectocentrus (1896)
🌵 Basionym author(s)	John Merle Coulter
🌵 Basionym published in	Contr. U.S. Natl. Herb. 3(7): 376 (1896)
🌵 Type of	Echinomastus

Etymology

Latin ērectus ‘erect, upright’ + Greek kentron ‘spine, point, center’. For the erect central spines. Coulter: “The plant is characterized by its very flat base, on which the spines are persistent even to the origin of the root and by uniformly erect centrals.”