Rhynchospora triflora

Primary tabs

Rhynchospora triflora

Description

Perennial. Leaves rigid, complicate at the base, otherwise flat, long- acuminate, scabrous on the margins, glaucous, (3-)4-6 mm wide; Inflorescence consisting of 1 or 2 distant, loose, corymbiform anthelas, 25-50 cm long; Lowest flower bisexual, upper ones ♂. Stamens 3;

Distribution

Africa present: Angola (Angola present); Cameroon (Cameroon present); Congo (Congo present), America present, Asia-Tropical: Malaya (Peninsular Malaysia present), Ceylon present, Fr. Guyana present, Lower Fly River present, Pahang present, Rhodesia present, SE. New Guinea present, Southern America: Honduras (Honduras present); Paraguay (Paraguay present), Tasek Bera present, W. Africa present
America (West Indies, Honduras, Fr. Guyana, Brazil, Paraguay), Africa (Cameroon, Rhodesia, W. Africa, Angola, Congo), Ceylon, Indo-China; in Malesia: Malay Peninsula (Pahang: Tasek Bera) and SE. New Guinea (Lower Fly River).

Notes

The habit is that of R. corymbosa, but more slender, and the leaves narrower. At once distin- guishable by the subulate, not grooved beak of the nut. KÜKENTHAL () dis- tinguished the Papuan collection (BRASS 8356) as var. papuana: Leaves and bracts narrower, scarcely wider than 2 mm; nut obovate-oblong, 4 mm long. In the specimens of this collection I have seen the leaves are 4 mm wide and the nuts not different from those of typical R. triflora. Like BLAKE () I think they do not deserve varietal distinction.

Citation

Clarke 1893 – In: Fl. Br. Ind.: 670
S. T. BLAKE 1948 – In: J. Arn. Arb.: 101
VAHL 1909: Ill. Cyp.: f. 6
KUNTH 1837 – In: En.: 292
KÜK. 1949 – In: Bot. Jahrb.: 426
KÜK. 1940 – In: Bull. Jard. Bot. Btzg: 303
BOECK. 1873 – In: Linnaea: 625
THW. 1864: En. Pl. Zeyl.: 352