| Collector | Harley, R.M. |
| Number | 15945 |
| Collected with | S.A. Renvoize, C.M. Erskine, C.A. Brighton & R. Pinheiro |
| Country | Brazil |
| Subpart | Estado de Bahia |
| County | |
| Locality | Serra do Sincora, By Rio Cumbuca ca. 3 km. s of Mucugé, near site of small dam on road to Cascavel. Riverside, damp sandy soil, sandstone rocks and partly burnt-over vegetation |
| Coordinates | 13° 1' S 41° 21' W |
| Minimum elevation (m) | 850 |
| Maximum elevation (m) | 850 |
| Start date | 1974/02/04 |
| End date | 1974/02/04 |
| Family | Xyridaceae |
| Identification | Xyris rubromarginata Kral & L.B. Sm. |
| Determined by | |
| Identification qualifier | |
| Field notes | Tufted herb. Flowers yellow |
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