生活型

herb

形態特徵

• Procumbent herbs, stems creeping, rooting and flowering stems arising from nodes, sparsely pubescent.
• Leaves radical, petioles 1.5–3 cm long, winged, sparsely villous; blades oblanceolate or oblong-oblanceolate 2–4 cm long, 0.5–1 cm wide, apex rounded, gradually narrowed to base, attenuate into petiole, margins coarsely sinuate.
• Cymes with 1–3 flowers in axils, flowers pedicellate; pedicels 5–8 mm long; calyx campanulate; corolla blue; pollen grains tricolpate, prolate, 30×18–20 m, tectum perforate, exine rugulate to reticulate.
• Nutlets ca. 1.6 mm long.
• Chromosome number 2n = 32.

分布

• 台灣 : on open ashores in Taipei County.
• 世界 : Japan and the Ryukyus.

引證標本

TAIPEI: Shiman, Huang 8281, Kao 3955*; Chingshan, Huang 2301; Paishawan, Hsieh 854.

參考文獻

• HUANG, Tseng-Chieng, HSIEH, Tsung-Hsin and CHENG, Wu-Tsang. 1998. Flora of Taiwan, second edition 4: 442. (Fl. Taiwan 2nd edit.)