| Classification | Asclepiadaceae: Asclepias |
| Harvard University Herbaria Barcode(s) | 00062391 |
| Type Status | Isotype |
| Collector | B. Maguire |
| Collector number | 18310 |
| Country | United States of America |
| State | Utah |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Utah: Emery County |
| Locality | Vicinity water tank, Calf Spring Canyon, 5000 feet, San Rafael Swell, 18 miles southeast Castle Dale, sandy soil |
| Date Collected | 1940-05-10 |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/018fe02f-cad1-4fdb-bb95-cfbea688a279 |
| Harvard University Herbaria Barcode | 00062391 |
| Herbarium | GH |
| Family | Asclepiadaceae |
| Type Status | Isotype |
| Isotype of | Asclepias ruthiae Maguire |
| Determination Remarks | [is filed under name] |
| Taxon Reference | (for Asclepias ruthiae Maguire) Ann. Missouri Bot. Gard. 1941. 28: 245. |
| Sex | not determined |
| Phenology | Flower |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
