宽叶泽薹草 kuan ye ze tai cao

Rhizomes erect. Petiole 15-55 cm; leaf blade suborbicular, 4.5-7 × 6-8 cm, veins 9-12, base usually subtruncate, apex notched, ribbed. Scapes erect, 30-60 cm high; inflorescences paniculate. Flowers 3-verticillate; pedicels 1.2-2 cm. Sepals persistent, reflexed, elliptic to broadly ovate, 3-4 mm. Petals reflexed, white, spatulate or subobovate, 6-7 mm. Stamens 9-12. Carpels usually 15-17; style ca. 1.5 mm, slender. Fruitlets subobovoid, ca. 2 mm, with 3-5 longitudinal ribs abaxially and an erect beak. Fl. and fr. Jul-Sep. 2n = 22*.

Lakes, marshes. Guangdong, Hubei, Hunan, Taiwan, Yunnan [Bangladesh, India, Malaysia].