"Plantae" . "Poales" . . "Rhynchospora filiformis" . "Cyperaceae" . "Rhynchospora" . "Rhynchospora filiformis Vahl" . "Magnoliophyta" . "Vahl" . . . "Bird Beaksedge" . . . . . . . . . "Liliopsida" . . .