Cyperus sulcinux
Content
Description
Annual with fibrous, yellowish roots.
Leaves rigid, flat or canaliculate, gradually acuminate, scabrid at the top, narrow, ½-2 mm wide;
Inflorescence relatively large, simple, loose, rarely subcapitate.
Stamen 1;
Distribution
Asia-Tropical: Borneo present (Sabah present, Sarawak present); India present; Jawa (Jawa present); Maluku (Maluku present); New Guinea present; Philippines (Philippines present), Australasia: Queensland (Queensland present), Farther India present, Kangean Archipelago present, Lesser Sunda Is present, Luzon present, Madura present, Mindanao present, Palawan present, Talaud Is present, Ternate present, W. Sumba present, tropical Australia present
From India through Farther India to tropical Australia (Queensland), in Malesia very local: in a few localities in Java, Kangean Archipelago, Madura, Borneo (Sarawak, North Borneo), the Philippines (Palawan, Luzon, Mindanao), the Moluccas (Talaud Is., Burn, Ternate), Lesser Sunda Is. (W. Sumba), and New Guinea.
Notes
According to CLARKE’S original description the flowers should be diandrous. I always found only 1 stamen in the numerous flowers dissected.
Citation
S. T. BLAKE 1947 – In: J. Arn. Arb. p 220
VALCK. SUR. 1898: Gesl. Cyp. Mal. Arch: 63. t. 2 f. 14, t. 3
Clarke 1923 – In: En. Philip. p 111
KERN 1954: p. 46. – In: Reinwardtia. f. 7
KÜK. 1936: p. 364. – In: Pfl. R. f. 43
Merr. 1921: En. Born. p 58
CAMUS 1912 – In: Fl. Gén. I.-C. p 29
Clarke 1907 – In: Philip. J. Sc. Bot. 80
BACK. 1949 – In: Bekn. Fl. Java, (em. ed.). fam. 246, p. 40
Clarke 1968 – In: Back. & Bakh.f., Fl. Java 3. p 471
Merr. 1921: En. Born. p 58
CAMUS 1912 – In: Fl. Gén. I.-C. p 34