| Name | Asclepias asperula subsp. capricornu (Woodson) Woodson |
| Authorship | (Woodson) Woodson |
| Rank | Subspecies |
| Placed in | Asclepias asperula (Decaisne) Woodson |
| Holdings | 60 Specimens held in the Harvard University Herbaria identified as Asclepias asperula subsp. capricornu (Woodson) Woodson |
| Identification made in | [no date] (60) |
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