生活型

herb

形態特徵

• Perennial prostrate herbs. Stems slender, diffusely branched, densely white hirsute, usually rooting.
• Leaves membranous; petioles 5-10 mm long; blades ovate to ovate-cordate, 15-25 mm long, 10-20 mm wide, apex obtuse, base obtuse to truncate, with 5-8 pairs of depressed mucronate teeth on margin, covered with hirsuteness.
• Inflorescence solitary in upper leaf axils or in a 3-flowered fascicles. Pedicels 10 mm long in flower, 20-30 mm long in fruit. Calyx tubular, 10 mm long in flower, 15-20 mm long in fruit, 5-ribbcd. Corolla bilabiate, dark bluish purple, 12-15 mm long, upper lip orbiculate, ca. 5 mm long, lower lip 3-1obcd, lobes orbiculate, ca. 4 mm long. Stamens 4, didynamous, anterior filaments with a filiform appendage near base.
• Capsule narrowly ellipsoid, ca. 10 mm long, enclosed by the persistent calyx.
• This species differs from <i>T. concolor</i> by densely white hirsute plant and small corolla (12-15 mm long). It is restricted in the northern Taiwan and rare.

分布

• 台灣 : in sunny grassland at low elevations on northern part.
• 世界 : S. China.

引證標本

Taipei: Yenliao, T. C. Huang 8463 (TAl).

參考文獻

• Tsung-Hsin Hsieh & Kuoh-Chieng Yang, Taiwania 47(4): 281. 2002.