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FOC | Family List | FOC Vol. 4 | Saururaceae | Houttuynia

1. Houttuynia cordata Thunberg, Kongl. Vetensk. Acad. Nya Handl. 4: 149. 1783.

蕺菜 ji cai

Polypara cochinchinensis Loureiro; P. cordata Kuntze.

Herbs (5-)30-60 cm high; rhizomes creeping, thin. Basal part of stems creeping, rooted in whorls at nodes, apical part erect, glabrous or pubescent on nodes, sometimes purplish red. Stipular sheath (0.5-)1-2.5 cm, 1/4-1/2 as long as petiole, usually ciliate, base enlarged and slightly clasping; petiole (0.7-) 1-3.5(-4) cm, glabrous; leaf blade broadly ovate or ovate-cordate, (1.5-)4-10 × (1.8-)2.5-6 cm, thinly papery, densely glandular, usually glabrous, sometimes pubescent at vein axils, usually purplish abaxially, base cordate, apex shortly acumi

nate; veins 5-7, basal or innermost pair arising ca. 5 mm above base, if 7-veined, then outermost pair very slender or inconspicuous; reticulate veins ± conspicuous. Inflorescences (0.4-) 1.5-2.5(-2.7) cm × (2-)5-6 mm; peduncles 1.5-3 cm, subglabrous; involucral bracts oblong or obovate, (5-)10-15 × (3-)5-7 mm, apex rounded. Bract beneath each flower linear, terete, inconspicuous. Stamens longer than ovary. Capsule 2-3 mm, with persistent styles. Fl. Apr-Sep, fr. Jun-Oct. 2n = 24*, 96.

Ravines, streamsides, forests, wet meadows, slopes, thicket and field margins, trailsides, roadsides, ditch banks; near sea level to 2500 m. Anhui, Fujian, Gansu, Guangdong, Guangxi, Guizhou, Hainan, Henan, Hubei, Hunan, Jiangxi, Shaanxi, Sichuan, Taiwan, Xizang, Yunnan, Zhejiang [Bhutan, India, Indonesia (?Java), Japan (including Ryukyu Islands), Korea, Myanmar, Nepal, Sikkim, Thailand].

Leaves used medicinally; shoots eaten as a vegetable.


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