| Classification | Asclepiadaceae: Metastelma |
| Classification 1 | Asclepiadaceae: Cynanchum |
| Harvard University Herbaria Barcode(s) | 00046493 |
| Type Status | Holotype |
| Collector | C. G. Pringle |
| Collector number | 20 |
| Country | United States of America |
| State | Arizona |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Arizona: Pima County: Tucson |
| Locality | Hills near Tucson |
| Date Collected | 1883-05-22 |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/3d4ddf75-e3a3-4a4a-9c5b-3d02bec03de2 |
| Harvard University Herbaria Barcode | 00046493 |
| Herbarium | GH |
| Family | Asclepiadaceae |
| Type Status | Holotype |
| Holotype of | Metastelma arizonicum A. Gray |
| Verified by | M. Fishbein |
| Taxon Reference | (for Metastelma arizonicum A. Gray) Proc. Amer. Acad. Arts 1883. 19: 85. |
| Family | Asclepiadaceae |
| Determination | Metastelma arizonicum A. Gray |
| Determination Remarks | [current name] |
| Family | Asclepiadaceae |
| Determination | Cynanchum arizonicum (A. Gray) Shinners |
| Determined by | Eric Sundell |
| Date Determined | 1990-02-** |
| Family | Asclepiadaceae |
| Determination | Metastelma arizonicum A. Gray |
| Determination Remarks | [label name] |
| Annotation Text | n. sp. |
| Sex | not determined |
| Phenology | Flower |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
