Cyperus compactus

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Cyperus compactus

Description

Perennial with very short rhizome; Leaves rigid, strongly canaliculate, strikingly septate-nodulose, scabrous on the margins and midrib in the upper part, glaucous, 5-10(-12) mm wide; Inflorescence usually large, compound or decompound, up to 20(-30) cm across. Stamens 3;

Distribution

Asia-Tropical: India present, Australasia: Northern Territory (Northern Territory present), Mauritius, Réunion, S. China present, Southern America: Argentina Northeast (Formosa present)
From India to S. China and Formosa; introduced into Reunion and Mauritius, Australia: Northern Territory; throughout Malesia, in most parts common.

Notes

I have not seen the GRABOWSKY collection from Borneo on which BOECKELER founded his C. grabowskianus, “species insignis in viciniam C. scabridis et C. ehrenberghiani”. I doubt whether KÜKENTHAL’S reduction to C. compactus is right as the young plant was described as having cylindrical-ovoid, small spikes and 2-flowered spikelets.

Citation

Clarke 1884 – In: J. Linn. Soc. Bot.: 193
Clarke 1893 – In: Fl. Br. Ind.: 624
Merr. 1923 – In: En. Philip.: 112
CAMUS 1912 – In: Fl. Gén. I.-C.: 79
PRESL 1925 – In: Fl. Mal. Pen.: 149
PRESL 1907 – In: Philip. J. Sc.: Bot. 88
VAHL 1922 – In: Exk. Fl. Java: f. 202
RETZ. 1938 – In: Bot. Jahrb.: 256
Miq. 1856 – In: Fl. Ind. Bat.: 290
STEUD. 1855 – In: Syn.: 46
KÜK. 1924 – In: Bot. Jahrb.: 45
KÜK. 1936 – In: Pfl. R.: 423
BACK. 1928: Onkr. Suiker: 141: t. 141
VALCK. SUR. 1898: Gesl. Cyp. Mal. Arch: 146: t. 5 f. 3
DRUCE 1917: Rep. Bot. Exch. C1. 1916: 634
BOECK. 1870 – In: Linnaea: 354
Koord. 1911 – In: Exk. Fl. Java: 187
K. L. Wilson 1980 – In: Telopea: 462
Miq. 1856 – In: Fl. Ind. Bat.: 284
Ridl. 1907 – In: Mat. Fl. Mal. Pen. (Monoc.): 74
BACK. 1949 – In: Bekn. Fl. Java, (em. ed.): fam. 246, p. 49
F.-VILL. & NAVES 1880 – In: Blanco, Fl. Filip., ed. 3, 3: 12
S. T. BLAKE 1947 – In: J. Arn. Arb.: 221
KERN 1968 – In: Back. & Bakh.f., Fl. Java 3: 473
Miq. 1856 – In: Fl. Ind. Bat.: 285