| Classification | Apiaceae: Ammoselinum |
| Classification 1 | Apiaceae: Apium |
| Harvard University Herbaria Barcode(s) | 00073911 |
| Type Status | Holotype |
| Collector | C. G. Pringle |
| Collector number | 28 |
| Country | United States of America |
| State | Arizona |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Arizona: Maricopa County: Phoenix |
| Locality | near Phoenix |
| Date Collected | 1882-06-17 |
| Habitat | Mesas |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/1661ac4e-cb06-4e4e-87f7-97a305ca7430 |
| Harvard University Herbaria Barcode | 00073911 |
| Herbarium | GH |
| Family | Apiaceae |
| Type Status | Holotype |
| Holotype of | Ammoselinum giganteum J. M. Coulter & Rose |
| Verified by | T. Whitfeld |
| Determination Remarks | [filed under] |
| Taxon Reference | (for Ammoselinum giganteum J. M. Coulter & Rose) Contr. U.S. Natl. Herb. 1900. 7: 89. |
| Family | Apiaceae |
| Determination | Ammoselinum giganteum J. M. Coulter & Rose |
| Determined by | Mathias, Mildred Esther |
| Date Determined | 1939 |
| Determination Remarks | [current name] |
| Annotation Text | Type |
| Family | Apiaceae |
| Determination | Ammoselinum giganteum J. M. Coulter & Rose |
| Annotation Text | n. sp. [Annotation on sheet] |
| Family | Apiaceae |
| Determination | Apium popei (Torrey & A. Gray) A. Gray |
| Determination Remarks | [label name] |
| Sex | not determined |
| Phenology | Fruit |
| Preparation Type | Sheet |
| Preparation Method | Pressed |