| Collector | Irwin, H.S. |
| Number | 13984 |
| Collected with | J.W. Grear, Jr.,R. Souza, R, Reis dos Santos |
| Country | Brazil |
| Subpart | Federal |
| County | |
| Locality | Wooded rocky talus,Cõrrego Landim, ca. 25 km. N, of Brasilia, D.F. |
| Coordinates | |
| Minimum elevation (m) | 950 |
| Maximum elevation (m) | 950 |
| Start date | 1966/03/15 |
| End date | 1966/03/15 |
| Family | Cucurbitaceae |
| Identification | Cayaponia tayuya Cogn. |
| Determined by | C. Jeffrey, 1979, M.Nee (NY) 2010 |
| Identification qualifier | |
| Field notes | Soft-stemmed vine ca. 10 m, long. Corolla white. |
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