生活型

herb

形態特徵

• Suffruticose plants, covered with simple and white stellate hairs, to 1.5 m tall; stems and branches square, angles obtuse.
• Leaves petiolate; petioles densely stellate-hairy, to 1 cm long; blades 15–20 cm long, 6–10 cm wide, elliptic to ovate, base cuneate, apex acuminate, margins coarsely serrate, both surfaces covered with simple and stellate hairs.
• Inflorescences of verticillate cymes forming terminal spikes, to 20 cm long; bracteoles cordate, densely stellate on adaxial side, glabrous on abaxial side, veinlets prominent beneath. Flowers pedicellate; pedicels 1–2 mm long; calyx campanulate, densely stellate-hairy, 5–6 mm long, 3–4 mm wide, limb 5-toothed, teeth broadly triangular, equal or nearly so; corolla tubular, 9–11 mm long, densely stellate hairy in throat, limb 5-lobed, lower lobe largest, ovate, concave, 2 lateral lobes broadly ovate, 2 upper lobes smallest, broadly ovate; stamens 4, didynamous, upper pair shorter than lower pair, anthers 1-celled, opening terminally.
• Nutlets cylindric, becoming 3-angled when mature, glandular-dotted, ca. 1.5 mm long.

引證標本

ILAN: Piyanansya, Sasaki s. n. 1925*. TAICHUNG: Lishan to Hofuang, Huang 4809.

引用文獻

• HUANG, Tseng-Chieng, HSIEH, Tsung-Hsin and CHENG, Wu-Tsang, Flora of Taiwan, second edition 4: 457. 1998.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)