Cuscuta choisiana Yunck., Illinois Biol. Monogr. 6, nos. 2-3: 38, fig. 14, 80. 1921 From isotype at GH: Mexico: San Luis PotosÃ, Minas de San Rafael, ‘forma staminibus brevioribus’, Nov 1940, Purpus 4971 (Holotype: US, another isotype at UC).
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