生活型

herb

形態特徵

• A hirsute perennial herb; stems erect, up to 50 cm tall.
• Leaves 5- or 7- foliolate; leaflets oblong or elliptic, acute or obtuse at apex, obtuse at base, the upper surface greenish, the under surface pale-green, thinly pilose on both sides, the margins coarsely serrate; stipules subchartaceous, obovate-oblong, entire or dentate.
• Flowers 6–10 mm in diameter; pedicels very short, 1–2 mm long; calyx-lobes ovate, acuminate at apex; petals 5, yellow, narrowly obovate, 3–6 mm long; hypanthium obconic, thinly pilose outside.
• Fruits about 3 mm long, with 5 longitudinal grooves, hooked spines on upper edges.

分布

• 台灣 : in grassy fields or along roadsides at low altitudes.
• 世界 : China, the Ryukyus, Korea, Japan, Siberia and eastern Europe.

引證標本

TAIPEI: Tanshui, Chuang & Kao 4545; Chihsingshan, Shimada 747. HSINCHU: Tapin, Kawakami 5740*. NANTOU: Lienhuachih, Hibino & Suzuki s. n. 1936.

參考文獻

• OHASHI, HIROYOSHI, Flora of Taiwan, second edition 3: 70. 1993.  (Fl. Taiwan 2nd edit.)