Rhynchospora fusca (L.) Aiton f.
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Rhynchospora fusca (L.) Aiton f. [ Schoenus fuscus L.] [Cyperaceae]
T.F.L. Nees von Esenbeck, F.KL. Spenner, A. Putterlick, J.X.R. Caspary, Gen. Fl. Germ., vol. 3 (Monocotyledones 2 Cyperaceae etc): , fig. 1-13 (1843)