| Classification | Aristolochiaceae: Aristolochia |
| Harvard University Herbaria Barcode(s) | 00273120 |
| Type Status | Isotype |
| Collector | W. D. Stevens & J. Henrich |
| Collector number | 20353 |
| Country | Nicaragua |
| State | Matagalpa |
| Geography | North America: Central America (Region): Nicaragua: Matagalpa |
| Locality | along Hwy 3, 6.6 km N of Matagalpa (El Tuma intersection), ca Km 137.5 |
| Georeference | 12.86666667, -85.91666667 Method: Unknown |
| Date Collected | 1981-05-24 |
| Elevation | 1200 - 1250 m |
| Habitat | second growth at edge of evergreen forest |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/c86a9e7a-402f-4bdc-a7b1-9c917129d12a |
| Harvard University Herbaria Barcode | 00273120 |
| Herbarium | GH |
| Previous ownership | Missouri Botanical Garden and Centro de Investigaciones Geográficas |
| Family | Aristolochiaceae |
| Type Status | Isotype |
| Isotype of | Aristolochia stevensii Barringer |
| Verified by | Favio González |
| Date Determined | 2009-09-** |
| Taxon Reference | (for Aristolochia stevensii Barringer) Novon 1993. 3(4): 321-322, f. 1. |
| Family | Aristolochiaceae |
| Determination | Aristolochia thwaitesii Hooker |
| Determined by | K. Cook (MO) |
| Date Determined | 1989 |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |