Scientific name
Xyris indica
Common name
Yellow-eyed grass
Khmer/Indigenous name
Prasat Meas (temple of gold)
Family
Xyridaceae
Plant type
Monocot
Description/ Characteristics
Herbs perennial, robust. Leaf sheath 7-20(-25) cm; leaf blade ensiform-linear, 15-60 cm × 4-8 mm, glabrous, veins indistinct when dry, connected by numerous, prominent, transverse ribs, apex acute to obtuse. Peduncle 15-65 cm, veins prominent. Spikes ovoid, oblong-ovoid, or ellipsoid, 1.2-3.5 × 1-1.5 cm; bracts yellowish brown, suborbicular, obovate, or conchiform, 5-8 × 5-7 mm, minutely papillose on apical 1/3, base obtuse to truncate, margin gold-colored, membranous, apex entire or emarginate. Lateral sepals linear-spatulate, 5-7 × 0.8-1.4 mm, keel denticulate, apex obtuse; median sepal hooded, 4-6 × 2-2.5 mm, 1-veined. Petals yellowish to yellow; limb obovate to suborbicular, 3-4.5 × 3-4 mm, margin serrulate; claw 3.5-5 × ca. 0.5 mm. Stamens ca. 4 mm; anthers ovate, apex broadly incised, with a short mucro in incision. Staminodes 2-3 mm. Ovary obovoid, 1-loculed. Capsule globose to obovoid, 3-4 mm.
Habitat
Grows in swamps, moist localities, streams, pools, ponds, rice fields
Control methods
http://www.knowledgebank.irri.org/step-by-step-production/growth/weed-management
Reference
http://www.iucnredlist.org/details/194171/0
http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200027359
Image copyright
Dr Robert J. Martin
University of Sydney
bob.martin@sydney.edu.au
WeedID Project 