• Scientific Name: Limnocharis flava (L.) Buchenau
• Ref: Index Crit. Butom. Alism. Juncag.:13. 1868
• Synonyms: Alisma flavum L.; Damasonium flavum (L.) Mill.; D. maximum Burm. ex Steud.; Limnocharis emarginata Humb. & Bonpl.; L. flava var. indica Buchenau; L. plumieri Rich.
• English Common Name: yellow velvetleaf, sawah flower rush, sawah lettuce
• Chinese Common Name: 黄花蔺 huáng∙huālìn
• Family: Alismataceae
• Genus: Limnocharis
• Distribution: Naturalized in marshes and shallow water; 600-700 m. Guangdong, S Yunnan [native to the Caribbean, Central America, North America (Mexico), and South America; naturalized throughout S and SE Asia].
• Photo: 06/21/2009, South China Botanical Garden, Guangdong

Petiole trigonous, 20-65 cm, stout; leaf blade 6-28 × 4.5-20 cm, veins 9-13, transverse veins numerous, parallel, base obtuse or subcordate, apex obtuse or retuse. Scapes upper trigonous, 20-90 cm; umbels 2-15-flowered; bracts green, orbic-ular to broadly elliptic, 1.5-2 × 1-1.5 cm. Pedicels 2-7 cm. Petals yellowish but blackish toward base, broadly ovate to orbicular, 2-3 × 1-2 cm, apex rounded. Stamens shorter than petals; filaments green. Carpels yellowish green. Fruit cluster 1.5-2 cm in diam.; follicles suborbicular. Seeds brown. Fl. Mar-Apr. (Flora of China)