Uncinia riparia
Content
Description
Leaves from slightly shorter to slightly longer than the stems, rigid, flat or canaliculate, long attenuate, scabrous on margins and nerves in upper half, 1.5-3(-?4) mm wide;
Distribution
Asia-Tropical: New Guinea present, Australasia: Tasmania (Tasmania present); Victoria (Victoria present), Mt Kosciusko present, New Zealand present, Papua New Guinea present, SE. Australia present, Upper Hume R present, West Irian present, summit of Mt Wilhelmina present
New Zealand, Tasmania, SE. Australia (Victoria, Upper Hume R. and Mt Kosciusko, according to Bentham, l.c.; no specimens seen); in Malesia: New Guinea (West Irian, summit of Mt Wilhelmina; Papua New Guinea).
Notes
Whether the glumes are persistent or caducous can often only be seen in old inflorescences. It is not impossible that hybrids occur with U. compacta, thus giving more variability and plants in which the glumes fall very late. In these plants the sharply triquetrous culms become more or less rounded and smooth instead of scabrous (not found in Malesia).