生活型

herb

形態特徵

• Annual ascending to erect herbs, 20–70 cm tall; stems much branched, pilose; nodes slightly enlarged.
• Leaves lanceolate to elliptical, 2.5–7 cm long, 1–1.7 cm wide, apex acute to acuminate, base cuneate, upper surface glabrous to moderately pilose, lower surface pilose at veins and minutely glandular; petioles 0.2–0.5 cm long; ocreae tubular, 0.8–1.8 cm long, apex truncate, pilose at veins, upper margin cilia short, cilia 0.8–2 mm long.
• Inflorescences 2–4-flowered fascicles in spike-like racemes, terminal or in axils of upper leaves, moderately to densely flowered, interrupted below, 5–11 cm long; peduncles pilose, 1.5–3 cm long; bracts oblique-funnelform, pilose, apex acute, upper margins ciliate. Flowers pink; pedicels included or slightly exserted; perianth segments 4 to 5, broadly elliptic, ca. 3 mm long, apex rounded; stamens 6–8; styles 2-cleft, included; nectaries present.
• Achenes dark brown, plano-convex, smooth, shining, 2–3mm long.

分布

• 台灣 : in shady fields, roadside.
• 世界 : N & W Asia, Indonesia, the Ryukyus, Japan, Korea, Europe, Africa and North America.

引證標本

TAIPEI: Hsu 4409. ILAN: Sanhsin, Kao 9675; Nanshan, Hsu 5796. TAOYUAN: Lontan, Kuo 233.

參考文獻

• LIU, HO-YIH, Flora of Taiwan, second edition 2: 307. 1996.  (Fl. Taiwan 2nd edit.)