生活型

herb

形態特徵

• Annuals to 80 cm long tall. Stems erect, subquadrangular, branched.
• Basal leaves petiolate, leaf blade rhombic-ovate, 1.5–3 cm long including petiole, 5–7 mm long wide, apex obtuse, base narrowed, veins 3. Stem leaves sessile; leaf blade linear-lanceolate to lanceolate, 2–7 cm long, 3–7 mm long wide, apex acute or obtuse, base narrowed, veins 3.
• Inflorescences panicles of Cymess, lax, few-flowered. Flowers 5-merous, occasionally 4-merous. Pedicel 1–2.5 cm long. Calyx lobes ovate-lanceolate to spatulate, spreading to recurved, 2–3.5 mm long, apex obtuse to acute, veins 3. Corolla pale yellow, with dark spots on middle and upper portions, lobes oblong, 4–8 mm long, 2–3.5 mm long wide, apex obtuse to acute. Nectaries 2 per corolla lobe, in middle of lobe, orbicular, reduced to a naked glandular patch. Filaments ca. 3 mm long; anthers ellipsoid, 1–1.5 mm long. Ovary ovoid, 5–6 mm long; style short.
• Capsules narrowly ovoid, 1–2 cm long. Seeds many, dark brown, subglobose, 0.7–1 mm long; seed coat alveolate.

分布

• 台灣 : from 2,000 to 3,500m in the center and south.

引證標本

NANTOU: Nokozan, Matuda s. n. 1919 (Holotype of S. matsudae, TI!). CHIAYI: Tozan, Nakahara s. n. 1906 (Holotype of S. tozanensis, TI!); Yushan, Peng 8580. KAOHSIUNG: Chinching Bridge to Kuanshan, Lin 139. HUALIEN: Tienchih to Kuailin, Ho 650; Tayuling, Peng 14492; Chingshuishan, Chen 1162; Hoping logging tract, Wang 8590.

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.)