生活型

herb

形態特徵

• An annual herb; stems erect, 4-angled, short branched;
• leaves spreading, broadly linear to lanceolate-oblong, 2.5–5 cm long, 3–12 mm wide, acute to subobtuse;
• lowers few, in dense sessile axillary cymes, the pedicels about as long as the flowers; calyx obconical, obscurely 4-angled, the lobes deltoid; petals minute, whitish; stamens 4;
• capsules globose, red-brown, half-exserted from the calyx; styles distinct, the stigmas rather thickened; seeds rninute, brown.

分布

• 台灣 : Widely distributed in the wet places of lowlands, especially in paddy fields.
• 世界 : Tropics and subtropics of Africa, Asia, Australia, Japan and Taiwan.

引證標本

ILAN: Nanao, Huang 13371. CHANGHUA: Newpu, Huang 15008. YUNLIN: Huwei, Huang 15123.

參考文獻

• HUANG, TSENG-CHIENG, Flora of Taiwan, second edition 3: 873. .  (Fl. Taiwan 2nd edit.)