生活型

herb

形態特徵

• A green annual fleshy herb; stems tufted, 10–15 cm high, erect, rather stout, densely leaved, branching dichotomously or trichotomously.
• Leaves alternate, occasionally opposite, spathulate to obovate, 10–15 mm long, 8–12 mm broad, broadly rounded at apex, obtuse to cuneate at base.
• Cymes rather large, 5–8 cm across, many-flowered. Flowers sessile, about 1 cm across, yellow; bracts leaf-like; sepals 5, unequal in length, linear-lanceolate, 2–3 mm long, obtuse at apex; petals 5, narrowly lanceolate, acuminate at apex, 6–7 mm long, yellow; stamens 10, shorter than the petals, anthers yellow; carpels 5, erect when mature, broadly lanceolate, 5–6 mm long, shortly acuminate at apex, terminated by a style about 1 mm long.
• Seeds many, oblong, 0.4 mm long.(長寬=18:7)

物候

Flowering and fruiting periods from March to June.

分布

• 台灣 : along the seashore.
• 世界 : Japan, the Ryukyus and the Philippines.

引證標本

TAIPEI: Tanshui, Huang 2280; Padotse to Fulung, Tang 1477*. ILAN: Tali, Tang 1313; Wushihbi, Tang 1893. PINGTUNG: Hengchun, Kawakami & Sasaki s. n. 1912. TAITUNG: Lanyu, Huang et al. 9179.

引用文獻

• TANG, WEI-SHIN and HUANG, TSENG-CHIENG, Flora of Taiwan, second edition 3: 21. 1993.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)