Xyris albescens
Xyris albescens in Fieldiana, Bot. 28: fig. 16a, b. 1951 sec. Charles N. Horn & al. 1994
- Holotype: Venezuela, Bolivar, Ptari-tepui, J.A. Steyermark 59734
- Isotype: Venezuela, Bolivar, Ptari-tepui, J.A. Steyermark 59734
- Isotype: Venezuela, Bolivar, Ptari-tepui, J.A. Steyermark 59734 (GH)
- Isotype: Venezuela, Bolivar, Ptari-tepui, J.A. Steyermark 59734 (NY)
- Isotype: Venezuela, Bolivar, Ptari-tepui, J.A. Steyermark 59734 (US)