Pediocactus knowltonii

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Pediocactus knowltonii

Pediocactus knowltonii L.D.Benson in Cact. Succ. J. (Los Angeles) 32: 193. 1960 sec. Parfitt & Gibson 2003
  • Pediocactus bradyi var. knowltonii (L.D.Benson) Backeb., Descr. Cact. Nov. 3: 12. 1963 syn. sec. Parfitt & Gibson 2003
  • Pediocactus simpsonii var. knowltonii (L.D.Benson) Halda in Acta Mus. Richnov., Sect. Nat., 5(1): 13. 1998 syn. sec. Parfitt & Gibson 2003

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