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DB
/
Variety
Echinocactus fossulatus var. quadrispinus
Taxonomy
Taxonomic Rank
Variety
Author
Regel
Publication
Index Seminum St. Petersburg (Petropolitanus) 1857: 48. 1858.
Synonym Of
Thelocactus hexaedrophorus
References
Taxonomic data from
World Flora Online
, accessed June 20, 2024