生活型

herb

形態特徵

• Annual glabrous herbs, stems erect or ascending, up to 20 cm high, simple or branched,.
• Leaves sessile, ovate-oblong to elliptic, 7–25 mm long, 3–12 mm wide, palmately 3–5-nerved, apex acute to obtuse, base cuneate, margins entire, glabrous.
• Flowers solitary and axillary, not forming terminal racemes, pedicels longer than the subtending leaves, 10–28 mm long. Calyx cleft to near the base, 2.5–4 mm long; lobes linear-lanceolate, glabrous. Corolla white or pale pink, 4–6 mm long. Stamens 4, all fertile, included; anterior filaments each with a linear spur near the base.
• Capsule ellipsoid, subequaling or slightly longer than the persistent calyx, 3–4.5 mm long.

分布

• 台灣 : in wet areas near bodies of water.
• 世界 : Tropical and subtropical regions of the Old World.

引證標本

TAIPEI: Shintin, Simada 904C.

參考文獻

• LIU, Ho-Yih, Flora of Taiwan, second edition 4: 606. 1998.  (Fl. Taiwan 2nd edit.)