生活型

herb

形態特徵

• Annual, terrestrial. Rhizoids and stolons capillary, branched.
• Leaves few to numerous, from the stolon nodes, 7–20(–30) mm long, 1–4 mm wide, glabrous; lamina narrowly linear or linear-oblanceolate, membranaceous, 1-nerved, base attenuate to petiole, margin entire, apex rounded or subacute. Traps on stolons and leaves, globose, 0.5–1 mm long, short-stalked; mouth basal, with 2 subulate, curved, dorsal appendages.
• Inflorescences erect, 2–40 cm long, 1–16-flowered, glabrous; peduncle terete, 0.3–1.2 mm thick; scales few, similar to bracts; bracts basifixed, ovate, 1–2 mm long, apex obtuse to acute; bracteoles subulate, much shorter than bract, apex acute; pedicels capillary, spreading at anthesis, recurved in fruit, broadly winged, 2–5 mm long. Calyx lobes slightly unequal, 3–4 mm long at anthesis, 5–6 mm long in fruit, glabrous; upper lobe broadly ovate, apex obtuse; lower lobe ovate, slightly smaller, apex rounded or emarginate. Corolla yellow, 6–10 mm long; upper lip oblong or oblong-obovate, apex rounded; lower lip subcircular, base with a prominent rounded swelling, apex rounded; palate margin ciliate; spur subulate, curved, about as long as and widely diverging from lower lip, apex acute. Filaments straight, ca. 1 mm long; anther thecae distinct. Ovary ovoid, dorsiventrally compressed; style distinct; lower lip of stigma semicircular, upper lip very short, obtuse.
• Capsule broadly ellipsoid, dorsiventrally compressed, ca. 2.5 mm long, dehiscing by longitudinal, dorsal and ventral slits. Seeds obliquely obovoid, 0.4–0.6 mm long; testa with elongate, reticulate prominences.

物候

Flowering June to November, fruiting July to December.

分布

• 台灣 : in wet soils and rice fields at low to middle elevations.
• 世界 : Southern and southeastern Asia to Australia.

引證標本

TAIPEI: Chengfu, Mori s. n. 1933; Hsintien, Shimizu 2353; Shihlin, Kawakami s. n. 1908; Peishih, Simada & Sasaki s.n. 1909; Peitou, Simada s. n. 1917; Yangmingli, Simada s. n. 1915. TAOYUAN: Tashulin, Kawakami & Inoue 3; Tachuwei, Sasaki s. n. 1909. HSINCHU: Hsinfeng, Kuo s. n. 1967; Lienhuashih, Huang & Huang 8309; Shanjiao, Peng 9488. CHIAYI: Mori s. n. 1908.

參考文獻

• LI, Zhen-Yu, Flora of Taiwan, second edition 4: 721. 1998.  (Fl. Taiwan 2nd edit.)