生活型

herb

形態特徵

• Biennials 45–100 cm long tall. Stems erect, simple, terete.
• Basal leaves persistent at anthesis, with petiole flattened, 2–3.5 cm long; leaf blade elliptic to obovate, variable in size, to 23 cm long and 10 cm long wide, base cuneate, decurrent into petiole, apex acute; veins distinct, pinnate, midrib elevated on l. s. Stem leaves sessile, ovate, to 10 cm long and 8 cm long wide, base cordate and subamplexicaul, apex acute.
• Inflorescences many-flowered thyrses, lax, branches spreading. Flowers 4- or 5- merous, nodding. Pedicel 1.5–3.5 cm long, slightly thickened at apex. Calyx tube 2–3.5 mm long, lobes ovate to triangular, 3–4.5 mm long, margin narrowly membranous, apex acute. Corolla pale yellow or yellow green, 3–4 cm long in diam., tube 3–4.5 mm long; lobes narrowly elliptic to oblanceolate, 1.5–2 cm long, with purple spots on upper portion, apex acute. Nectaries 1 per corolla lobe, in middle of lobe, suborbicular, reduced to a naked gland patch. Filaments slightly flattened, 5.5–6.5 mm long; anthers yellow, narrowly ellipsoid, ca. 4 mm long. Ovary laterally compressed, style indistinct.
• Capsules ovoid to ellipsoid, 1.7–2 cm long. Seeds brown, ellipsoid, ca. 0.5 mm long; seed coat warty.

分布

• 台灣 : broad-leaved forests from 500 to 900 m around Taipei.
• 世界 : Japan.

引證標本

TAIPEI: in monte Shinten, Faurie 1256 (Holotype of S. shintenensis, TI!); Leikungpo, Hsiaoketou, Peng 12285; Huangtitien, Wang 709; Erkoshan, Wang 9716; Uraishan, Chen 133; Mucha, Suzuki 13850.

參考文獻

• WANG, Jenn-Che, CHEN, Chih-Hsiung, LU, Chang-Tze and CHEN, Ya-Chi, Flora of Taiwan, second edition 4: 180. 1998.  (Fl. Taiwan 2nd edit.)