Sclerocactus spinosior

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Sclerocactus spinosior (Engelm.) D.Woodruff & L.D.Benson in Cact. Succ. J. (Los Angeles) 48(3): 131. 1976 sec. Parfitt & Gibson 20031

≡Echinocactus whipplei var. spinosior Engelm. in Trans. Acad. Sci. St. Louis 2: 199. 1863 syn. sec. Parfitt & Gibson 20031
≡Ferocactus spinosior (Engelm.) N.P.Taylor in Cact. Succ. J. Gr. Brit. 41: 90. 1979 syn. sec. Parfitt & Gibson 20031
≡Sclerocactus pubispinus var. spinosior (Engelm.) S.L.Welsh in Great Basin Naturalist 44(1): 67. 1984 syn. sec. Parfitt & Gibson 20031
≡Pediocactus spinosior (Engelm.) Halda in Acta Mus. Richnov., Sect. Nat., 5(1): 16. 1998 syn. sec. Parfitt & Gibson 20031

1. Parfitt, B.D. & Gibson, A.C. 2003: Cactaceae. – In: Flora of North America Editorial Committee, Flora of North America 4. Magnoliophyta: Caryophyllidae, part 1

=Echinocactus spinosior K.Brandegee ex Purpus in Monatsschr. Kakteenk. 10: 97. 1900 syn. sec. Britton & Rose 19222

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