生活型

shrub

形態特徵

• Shrubs, prostrate; stems creeping, rooting at nodes, densely pubescent when young, glabrescent, somewhat 4-angular.
• Leaves mostly simple, obovate or oblong-elliptic, 2.7–4.5 cm long, 1.4–2.5 cm wide, apex rounded or obtuse, base acute or obtuse, sometimes rounded, margin entire, densely pubescent on both surfaces, green adaxially, gray abaxially; petiole 2–6 mm long.
• Inflorescence terminal, thyrses. Flowers purplish blue; calyx cup-shaped, 3–4 mm long, shallowly 5-denticulate, tube very densely white pubescent outside, glabrous inside; corolla 5-lobed, 2-lipped, salverform, tube densely pubescent outside, villous on upper part inside, lobes densely pubescent outside, glabrous inside; stamens exserted, ca. 8. mm long, filaments densely villous on lower part; ovary globose, glabrous, style ca. 11 mm long, glabrous.
• Fruit subglobose, ca. 5 mm across.

分布

• 台灣 : open sandy areas near the coast.
• 世界 : SE. Asia, Pacific islands, the Ryukyus, Japan, and China.

引證標本

ILAN: Lotung, T. Suzuki 3662; Touchen, C. E. DeVol 8121. KEELUNG: Keelung islet, Sasaki 1928; Pengchiayu, T. C. Huan et al. 15791. TAIPEI: Kungliao, Y. M. Hsu 0149; Pali, J. C. Wang 558. TAOYUAN: Hsinwu, T. T. Chen 7764. HSINCHU: Sanchiao, C. C. Wang 813; Nanliao, T. C. Huang & M. T. Kao 6932. CHANGHUA: Chiouyentien, Guo et al. 081. YUNLIN: Taishi, J. C. Wang 2549; Suhu, W. S. Tang 715. KAOHSIUNG: Chiching, K. C. Yang 1402; Chieting, K. C. Yang 2055a. PINGTUNG: Kengtin, K. C. Yang 275; Fengkang, S. C. Lee et al. s. n. in 1955. TAITUNG: Taimali, H. Keng 1398; Lutao, T. C. Huang & M. T. Huang 6932. PENGHU: Penghu islet, T. C. Huang & M. T. Kao 6823; Hsiyu, C. S. Kuo 1051.

引用文獻

• YANG Yuen-Po , LU Sheng-You and CHEN Tien-Tsai, Flora of Taiwan, second edition 4: 428. 1998.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)