There were 3 illustrations found for R. Yahr
2 1078561 Xyris calcicola E.L.Bridges & OrzellNovon, vol. 13 : p. 17, fig. 1 (2003) [R. Yahr]
2 1078621 Xyris correlliorum E.L.Bridges & OrzellNovon, vol. 13 : p. 21, fig. 2 (2003) [R. Yahr]
2 569600 Juncus paludosus E.L.Bridges & OrzellNovon, vol. 18 : p. 295, fig. 1 (2008) [R. Yahr]