e-Flora of Thailand

Volume 6 > Part 4 > Year 1998 > Page 308 > Cyperaceae > Fimbristylis

19. Fimbristylis ovata (Burm.f.) J.Kernwfo-0000422398

Blumea 15: 126. 1967; in Fl. Males., Ser. 1, Spermat. 7: 565. 1974; T.Koyama, Bot. Mag. Tokyo 87: 305. 1974; Hô, Câyco Viêtnam III. 2: 649. 1993.— Carex ovata Burm.f., Fl. Ind. 194. 1768.


Accepted Name : This is currently accepted.



Synonyms & Citations :

Carex ovata Burm.f., Fl. Ind. 194. 1768.
Cyperus monostachyos L., Mant. 2: 180. 1771.— Abilgaardia monostachyos (L.) Hassk., Pl. Jav. Rar.: 61. 1848; C.B.Clarke in Hook.f., Fl. Br. Ind. 6: 649. 1893; Camus in Fl. Gén. I.-C. 7: 122. 1912; Ridl., Fl. Malay Penins. 5: 159, 1925; J.Kern, Reinwardtia 6: 41 1961; Raymond, Dansk Bot. Ark. 23: 328. 1966.


Description : Rhizomatous perennial. Culms 1-few, 6–40 cm by 0.3–0.8 mm, trigonous, smooth below, spinulose-scabrous above. Leaves basal; blade narrowly linear, up to 30 cm by 0.5–1.2 mm, flattish with weakly incurved margins or weakly inrolled; sheath 1–6 cm long, dorsally pale green to pale brown, ventrally whitish-hyaline; ligule 0. Involucral bracts 2–3, glume-like or with setaceous blade 0.5–1 cm long. Inflorescence of 1(–3) spikelets, upper one with a 1–2 cm long peduncle. Spikelets ovate, ovate-lanceolate, somewhat flattened, 8–15 by 3–7 mm. Glumes 8–20 per spikelet, 2-ranked below, spirally arranged above, ovate to broadly ovate, 3–6 by 2–4 mm, acute, mucronate, sides chartaceous, whitish to pale yellowish, weakly shiny, keel acute, slightly incurved, 3-nerved, greenish. Stamens 3; anthers 2 mm long. Stigmas 3. Nutlets broadly obovoid, trigonous, 2–2.5 by 1.3–1.5 mm, white or cream, ± densely verruculose.


Thailand : Common throughout the country.


Distribution : Pantropical (Java – type), with range extending north in Asia to central Japan.


Ecology : Dry or wet open grasslands, open forests, coastal rock outcrops, 0–400 m alt.


Vernacular : Ya kuk muu (หญ้ากุกหมู)(Northern).


Notes: A common species which is characterised by its single, rarely up to three, spikelets which are whitish to pale yellowish.


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