| Classification | Asclepiadaceae: Basistelma |
| Classification 1 | Asclepiadaceae: Cynanchum |
| Classification 2 | Asclepiadaceae: Metastelma |
| Harvard University Herbaria Barcode(s) | 00046490 |
| Type Status | Isotype |
| Collector | C. Wright |
| Collector number | 1677 |
| Country | Mexico |
| State | Sonora |
| Geography | North America: North America (CA, US, MX) (Region): Mexico: Sonora: Santa Cruz |
| Locality | N. Mex. [Santa Cruz] |
| Date Collected | 1851-09-27 |
| Habitat | [Sides of ravines] |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/433dee45-b786-4b90-bfb2-2b311358de3e |
| Harvard University Herbaria Barcode | 00046490 |
| Herbarium | GH |
| Previous ownership | ex Herb. John A. Lowell |
| Family | Asclepiadaceae |
| Determination | Basistelma angustifolium (Torrey) Bartlett |
| Determination Remarks | [is label name] |
| Family | Asclepiadaceae |
| Determination | Cynanchum wigginsii Shinners |
| Determined by | E. Sundell |
| Date Determined | 1990-02-** |
| Family | Asclepiadaceae |
| Determination | Metastelma mexicanum (Brandegee) R. A. Levin & Fishbein |
| Determined by | R. A. Levin & M. Fishbein (ARIZ) |
| Date Determined | 1996-07-** |
| Determination Remarks | [is Current name] |
| Family | Asclepiadaceae |
| Type Status | Isotype |
| Isotype of | Metastelma angustifolia Torrey |
| Verified by | E. Sundell |
| Date Determined | 1990-02-** |
| Taxon Reference | (for Metastelma angustifolia Torrey) Rep. U.S. Mex. Bound., Bot. 1859. 159. |
| Family | Asclepiadaceae |
| Type Status | Isotype |
| Isotype of | Metastelma angustifolia Torrey |
| Verified by | R. A. Levin & M. Fishbein (ARIZ) |
| Date Determined | 1996-07-** |
| Taxon Reference | (for Metastelma angustifolia Torrey) Rep. U.S. Mex. Bound., Bot. 1859. 159. |
| Sex | not determined |
| Phenology | Flower |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
