https://succulentsundae.blogspot.com/2019/05/sulcorebutia-roberto-vasquezii_15.html
Succulent Sundae: SULCOREBUTIA ROBERTO-VASQUEZII
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https://species.wikimedia.org/wiki/Soehrensia_vasquezii
Soehrensia vasquezii - Wikispecies
wikispecies