Ammannia multiflora Roxb.

Rice fields and other wet places in Sind, Kurram and Punjab, up to 1800 m.

The differences between this species and Ammannia auriculata are minor or overlapping.

Plant 15-43 cm tall, erect. Stem usually branched. Leaves elliptic, lanceolate or linear-lanceolate, ± auriculate-cuneate at base, 3-40 mm log, 1-6 mm broad. Cymes 3(-15) flowered. Peduncle 1-4 mm long. Hypanthium 8-ribbed, ribs obscure in fruit. Epicalyx folds ± horn-like, minute or obscure. Sepals c. 0.5 mm long, usually reflexed in fruit. Petals minute, cuneate, obtuse. Style c. 1 mm long. Capsule slightly exceeding the hypanthium, 1-1.5 mm in diameter.

Herbs, annual, 8-65 cm tall. Stems with numerous, ascending, short branches. Leaves opposite, narrowly elliptic, broadly linear, or lanceolate-oblong, 1-2.5 cm × 3-12 mm, base attenuate to cordate. Flowers 3-7(-20) in dense axillary cymes; pedicels 1-2[-6] mm; peduncle 1-2 mm; bracteoles linear, not reaching floral tube. Floral tube campanulate, ca. 1.5 mm, 4-ribbed; sepals 4, deltate. Petals 4, pink to whitish, obovate, minute. Stamens 4, rarely 6-8. Style 1/3-1/2 as long as ovary. Capsules red-brown or red-wine colored, ca. 1.5 mm in diam., ca. 1/2 exserted. Fl. Jul-Aug, fr. Sep. 2n = 18.

Africa, W. Asia, Himalaya, east to China and Japan, Malaysia, Australia.

Distribution: Asia, tropical and subtropical Africa, Australia.

200-1300 m

Fl. Per.: September.

Wet places, farmland. S China (including Taiwan) [tropics and subtropics of Africa, Asia, and Australia].

Ammannia australasica F. Mueller; A. japonica Miquel; A. parviflora Candolle; A. multiflora var. parviflora (Candolle) Koehne; Suffrenia dichotoma Miquel.