生活型

herb

形態特徵

• Perennial; stems 65–95 cm tall, branched apically, striate, puberulous, branches slender.
• Lower cauline leaves thin, 14–24 cm long including petiole, petiole 4–9.5 cm long, blade 6.5–7 cm long, lyrate-pinnatipartite, lateral segments 2 pairs, oblong, apex acute to acuminate, terminal segments rhomboid, acuminate, margins mucronulate-denticulate, minutely puberulous on both surfaces; median cauline leaves remote, 9–13 cm long, oblong to lyrate-pinnatifid, apex acuminate, narrowed at base into winged petiole; upper leaves gradually smaller, lanceolate to linear, sessile.
• Inflorescence paniculate; heads nodding in bud; involucre cylindric, glabrous, purple, 12×3–4 mm; bracteoles ovate-oblong, basal, outer bracts 2-seriate, outer ones oblong, 2 mm long, inner ones linear-oblong, 5–6 mm long, inner bracts 5, linear. Florets 5; corolla purple, 11 mm long, deeply 4-lobed.
• Achenes reddish purple, fusiform, 4–5×*1 mm, compressed, 7–9-grooved. Pappus white, 8–9 mm long, bristles subequal.
• <i>Notoseris formosana</i> closely resembles <i>Paraprenanthes sororia</i> in foliage and habit, differing in the longer involucral bracts in ±3 series, more compressed and truncate achenes and in the longer pappus.

分布

• 台灣 : mountains, 1,500 to 2,500 m.

引證標本

ILAN: Taipingshan to Tulishan, Wang et al. 9348. TAOYUAN: Lalashan, Peng 14607. NANTOU: Yunhai to Tienchih, Liu 6. CHIAYI: Alishan, Peng 6021. KAOHSIUNG: Tengchih to Shihshan, Ohashi et al. 23640. HUALIEN: Mukuashan, Peng 7289.

參考文獻

• PENG, Ching-I & CHUNG, Kuo-Fang; LI, Hui-Lin, Flora of Taiwan, second edition 4: 1020. 1998.  (Fl. Taiwan 2nd edit.)