黄花蔺 huang hua lin

Alisma flavum Linnaeus, Sp. Pl. 1: 343. 1753; Damasonium flavum (Linnaeus) Miller; Limnocharis emarginata Humboldt & Bonpland.

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.

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].