Senecio taitungensis

台東黃菀

endemic

Senecio taitungensis S. S. Ying

名彙資訊

特徵描述

典藏標本

數位照片

分布位置

相關資訊

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名彙資訊

學名發表文獻

S. S. Ying, Memoirs of the College of Agriculture, National Taiwan University 30(2): 63. photo 13–14. 1990. (Mem. Coll. Agr. Natl. Taiwan Univ., 國立台灣大學農學院硏究報告)

台灣首次記錄發表文獻

同發表文獻

異名

無

各語言俗名

無

特徵描述

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.
Senecio taitungensis is diagnostic by its scape-like flowering stems. However, intermediate forms between S. taitungensis and S. morrisonensis and S. nemorensis var. dentata 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.