Taxonomic status: Unresolved

homotypic synonyms:
Echinocactus johnsonii Parry ex Engelm.; Echinomastus johnsonii (Parry ex Engelm.) E.M. Baxter; Ferocactus johnsonii (Parry ex Engelm.) Britton & Rose; Neolloydia johnsonii (Parry ex Engelm.) L.D. Benson; Sclerocactus johnsonii (Parry ex Engelm.) N.P. Taylor;

protologue: Cact. Succ. J. Gr. Brit. 9: 28 (1947)
URL protologue: https://archive.org/stream/#page/28/mode/2up

---

      search images: Google images       IPNI (International Plant Names Index)       WFO (World Flora Online)       POWO (Plants of the World online)       GBIF (Global Biodiversity Information Facility)

---