Ixeridium transnokoense

能高刀傷草

endemic

Ixeridium transnokoense (Y. Sasaki) J. H. Pak & Kawano

名彙資訊

特徵描述

典藏標本

數位照片

分布位置

相關資訊

名彙資訊

學名發表文獻

J. H. Pak & Kawano, Memoirs of the Faculty of Science, Kyoto University, Series of Biology 15: 49. 1992. (Mem. Fac. Sci. Kyoto Univ., Ser. Biol.)

台灣首次記錄發表文獻

同發表文獻

異名

Lactuca transnokoensis Y. Sasaki

Y. Sasaki, Transactions of the Natural History Society of Formosa 21: 223. 1931. (Trans. Nat. Hist. Soc. Formos.)
Ixeris transnokoensis (Y. Sasaki) Kitam.

Kitam., The Botanical magazine, Tokyo 49: 284. 1935. (Bot. Mag. Tokyo)

各語言俗名

日

みやまにがな.

參考文獻

Yang, A list of plants in Taiwan . 1982. (List Pl. Taiwan)

特徵描述

生活型

herb

形態特徵

Stems 8–20 cm tall, erect or ascending, not repent, nearly glabrous, stem and leaves sparsely with minute multicellular scale-like hairs, much branched.
Leaves chiefly radical, thick, linear, 4–8×0.4 cm, apex acute, base attenuate, narrowed into petiole, margins usually entire, rarely ciliate-serrate; cauline leaves few, 1–3, linear, gradually smaller.
Heads loosely corymbose; peduncle slender. Involucre narrowly cylindric, 7–7.5 mm long, blackish, outer bracts calyculate, ovate, 1 mm long, inner bracts 5, linear, white margined, thick keeled toward base. Florets 5(–7); corolla yellow, 10–11×2–3 mm.
Achenes brownish, fusiform, slightly compressed, 4–4.5×*0.7 mm, apex narrowed, beak 1.5 mm long. Pappus yellowish white, 4–5 mm long, bristles numerous, persistent, unequal.
Similar to <i>I. laevigatum</i>, but distinguishable by having fewer involucral bracts, longer pappus, and smaller and linear leaves.

分布

台灣 : in the central mountain range, 3,000–3,500 m.

引證標本

NANTOU: Tienchih, Chiu 3373; Kuankao to Chungyangchinkuang, Chen 92; Tatachia to Paiyun, Peng 9546. KAOHSIUNG: Kuanshan, Chen 89. HUALIEN: Luanshan to Patolushan, Tamura et al. 21641.