Fimbristylis eragrostis
Content
Description
Glabrous perennial with short woody rhizome in old specimens clothed with the remains of decayed leaf-sheaths.
Inflorescence compound or decompound, with several to numerous spikelets, 3-6 cm long, sometimes subcapitate.
Stamens 3;
Distribution
Arnhem Land present, Aru Is present, Asia-Temperate: Hainan (Hainan present), Asia-Tropical: India present; Malaya (Peninsular Malaysia present); New Guinea present, Australasia: Northern Territory (Northern Territory present); Queensland (Queensland present), Ceylon present, Kedah present, Lesser Sunda Is present, NE. New Guinea present, P. Trangan present, Papua present, Port. Timor present, S. Asia present, S. China present, Southern America: Argentina Northeast (Formosa present), Trengganu present, tropical Australia present
S. Asia, from Ceylon and India eastwards to S. China, Hainan and Formosa, southwards to tropical Australia (Queensland); in Malesia: Malay Peninsula (Kedah, Trengganu), Lesser Sunda Is. (Port. Timor), Aru Is. (P. Trangan), New Guinea (NE. New Guinea, Papua), Australia: Northern Territory (Arnhem Land: P. K. Latz 2836).
Notes
In the wide sense here accepted a most polymorphous species. F. eragrostis s. str., F. nigrobrunnea and F. pyenostachya (= F. lepidota) look very different, but I am unable to trace dividing lines, as they are connected by numerous inter- mediates.
Typical F. nigrobrunnea (= F. subtetrastachya) is characterized by the often clustered spikelets and the dark, imperfectly spirally arranged glumes. In its typical form unknown from Malesia.
F. pyenostachya still more deviates from typical F. eragrostis by its thick rhizomes, robust stems, castaneous leaf-sheaths, coriaceous leaves, sub- capitate inflorescences, and subspiral dark glumes. In Malesia it is only known from Kedah (Kedah Peak).
F. tortispica from N. Thailand and F. schlechteri from NE. New Guinea are in my opinion typical F. eragrostis, with solitary, light coloured spikelets and distichous glumes.
Typical F. nigrobrunnea (= F. subtetrastachya) is characterized by the often clustered spikelets and the dark, imperfectly spirally arranged glumes. In its typical form unknown from Malesia.
F. pyenostachya still more deviates from typical F. eragrostis by its thick rhizomes, robust stems, castaneous leaf-sheaths, coriaceous leaves, sub- capitate inflorescences, and subspiral dark glumes. In Malesia it is only known from Kedah (Kedah Peak).
F. tortispica from N. Thailand and F. schlechteri from NE. New Guinea are in my opinion typical F. eragrostis, with solitary, light coloured spikelets and distichous glumes.
Citation
THWAITES 1898 – In: J. Linn. Soc. Bot.: 70
STEUD. 1855 – In: Syn.: 72
CAMUS 1912 – In: Fl. Gén. I.-C.: 120
KERN 1967 – In: Blumea: 434
BOECK. 1871 – In: Linnaea: 55
Veldkamp 1982 – In: Reinwardtia: 26
KÜK. 1943 – In: Mitt. Thur. Bot. Ver. N.F.: 9
KOYAMA 1961 – In: J. Fac. Sc. Un. Tokyo: 117
Ridl. 1925 – In: Fl. Mal. Pen.: 159
S. T. BLAKE 1954 – In: J. Arn. Arb.: 215
Clarke 1893 – In: Fl. Br. India: 648
CAMUS 1912: p. 121. – In: Fl. Gén. I.-C.: f. 14, 3-6
KUNTH 1837 – In: En.: 249
Ridl. 1907 – In: Mat. Fl. Mal. Pen. (Monoc.): 97