| Name | Euphorbia polycarpa var. petrina (S. Watson) I. M. Johnston |
| Authorship | (S. Watson) I. M. Johnston |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Euphorbia polycarpa Bentham |
| GUID | urn:lsid:ipni.org:names:101875-2 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Euphorbia polycarpa var. petrina (S. Watson) I. M. Johnston |
| Identification made in | 1930 (1) |
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