铜锤玉带草 tong chui yu dai cao

Lobelia begoniifolia Wallich; L. horsfieldiana Miquel; L. javanica Thunberg; L. obliqua Buchanan-Hamilton ex D. Don; Pratia begoniifolia (Wallich) Lindley; P. nummularia (Lamarck) A. Brown & Ascherson; P. wollastonii S. Moore.

Herbs, perennial. Stems prostrate, 12-55 cm, villous, rarely glabrous, simple or branched at base, nodes rooted. Leaves alternate, petiolate; petiole 2-14 mm, puberulent; blade orbicular, reniform, or ovate, 0.7-2.6 × 0.5-2.7 cm, both surfaces glabrous or puberulent, base obliquely cordate or rarely truncate, margin serrate or crenulate, apex acute, obtuse, or rounded. Flowers solitary and axillary; pedicels 0.7-3.5 cm, glabrous. Hypanthium narrowly ellipsoid or urceolate, 2-4 × 2-3 mm, glabrous or villous; calyx lobes linear-triangular, 2.5-6 mm, margin with 2 or 3 pairs of denticles. Corolla purple-red, pale purple, pink, green, or yellow-white, 6-10 mm; tube glabrous or rarely ciliate outside, villous inside; limb 2-lipped; upper 2 lobes linear-triangular; lower 3 lobes lanceolate. Stamens connate above middle; filament tube glabrous; anther tube 1-1.5 mm, back villous; lower 2 anthers barbate at apex. Fruit a berry, purple-red, ellipsoid or globose, 0.7-1.5 cm. Seeds suborbicular, slightly compressed, reticulate. Fl. and fr. all year round.

By fields, roadsides, wet places on hills, grassy slopes, open woods; lower elevations. Hubei, Hunan, Guangxi, Taiwan, Xizang [Bangladesh, Bhutan, India, Indonesia, Laos, Malaysia, Myanmar, Nepal, New Guinea, Philippines, Sri Lanka, Thailand, Vietnam].