| Name | Asclepias contrayerba Sessé & Moçiño |
| Authorship | Sessé & Moçiño |
| Rank | Species |
| NomenclaturalStatus | Unknown |
| Placed in | Asclepias Linnaeus |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Asclepias contrayerba Sessé & Moçiño |
| Identification made in | [no date] (2), 1952 (2) |
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