Lawn Marshpennywort

Found in the plains and the foothills in grassy places near water.

Plants strongly aromatic. Stem weak, slender, filiform, creeping, diffusely branched. Petioles 0.7–9 cm, glabrous or distally pubescent; leaf blade reniform-rounded, 0.5–1.5 × 0.8–2.5 cm; membranous, variably hairy, adaxially glabrous and abaxially sparsely strigose along veins, or sometimes both surfaces glabrous or densely puberulous, base cordate, entire or shallowly 5–7-lobed, lobes rounded. Umbel solitary at the nodes, each umbel 5–8-flowered; peduncle filiform, 0.5–3.5 cm, 1–1/3 the length of the petioles; bracts ovate to ovate-lanceolate, 1–1.5 mm, membranous, with bright yellow glands; pedicels obsolete or almost so. Petals greenish white, ca. 1.2 mm, with yellow glands. Styles 0.6–1 mm, spreading. Fruit broadly globose, greenish yellow when young, covered with purplish stains when mature; intermediate ribs very prominent. Fl. and fr. Apr–Sep.

Plants slender, creeping. Stem glabrous, rooting at the nodes. Leaves petio¬late, almost round, 7-9 veined, 5-20 mm in diameter; ventral surface pubescent; margin crenate; petioles glabrous; stipules scarious, mottled. Flowers 3-10 in an umbel, subsessile. Fruit orbicular, 1 mm broad.

Widespread in the tropics of the Old World, occurring as an introduction in the New World.

Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hainan, Hubei, Hunan, Jiangsu, Jiangxi, Shaanxi, Sichuan, Taiwan, Yunnan, Zhejiang [Bhutan, India, Indonesia, Japan, Korea, Nepal, Philippines, Thailand, Vietnam; tropical Africa].

Distribution: Tropical Asia, W. Pakistan, India to China and Japan. Introduced in Australia and America.

600-2500 m

Forests, slopes, wet valleys, grassy places, stream banks; 100–3000 m.