生活型

herb

形態特徵

• Perennial herbs.
• Leaves mainly radical and rosulate, linear to narrowly elliptic in outline, 3–10 (–15)×0.5–3 cm, margins sinuate, sparsely serrate, cleft or pinnatifid, glabrous; cauline leaves few, reduced.
• Heads in compound corymbs; involucral bracts green, in 1 series, subequal, 4–5 mm long, obtuse, purple; outer bracteoles several, linear, 1–1.5 mm long. Ray florets 5 or 6, yellow, ca. 9.5 mm long, tube ca. 3.5 mm long; disc florets ca. 5 mm long.
• Achenes ribbed, ca. 2.8 mm long, sparsely appressed pubescent. Pappus silver white, brownish, ca. 4.5 mm long.
• <i>Senecio taitungensis</i> is diagnostic by its scape-like flowering stems. However, intermediate forms between <i>S. taitungensis</i> and <i>S. morrisonensis</i> and <i>S. nemorensis</i> var. <i>dentata</i> are also encountered.

分布

• 台灣 : at base of slopes, roadsides, and on exposed river banks along the Southern Cross-island Highway, 2,000–3,200 m.

引證標本

KAOHSIUNG: Chinching Bridge, Chung 1076. TAITUNG: Tienchi to Yakou, Ying s. n. Aug. 23, 1983 (Holotype!); Takuanshan, Peng 11812; Hsiangyang, Peng 11889.

參考文獻

• PENG, Ching-I & CHUNG, Kuo-Fang; LI, Hui-Lin, Flora of Taiwan, second edition 4: 1056. 1998.  (Fl. Taiwan 2nd edit.)