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CCDB → Angiosperms → Cactaceae → Echinomastus → Echinomastus johnstonii (ENGELMANN) E. M. BAXTER
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Echinomastus johnstonii (ENGELMANN) E. M. BAXTER | Echinomastus johnstonii E. M. Baxter | 11 | Baker, 2009 |