Ixeridium laevigatum

刀傷草

Ixeridium laevigatum (Blume) 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: 45. 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 thunbergiana auct. non Maxim.

Forbes & Hemsl., The journal of the Linnean Society of London. Botany 23: 484. 1888. (J. Linn. Soc., Bot.)
Lactuca oldhamii Maxim.

Hayata, Icones Plantarum Formosanarum 8: 76. 1919. (Icon. Pl. Formos.)
Ixeris oldhamii (Maxim.) Kitam.

Kitam., Acta phytotaxonomica et geobotanica eng 3: 134. 1934. (Acta Phytotax. Geobot.)
Ixeris laevigata (Blume) Sch. Bip. ex Maxim. var. lanceolata (Makino) Kitam.

Kitam., Acta phytotaxonomica et geobotanica eng 10: 22. 1941. p. p. (Acta Phytotax. Geobot.)
Ixeris laevigata (Blume) Sch. Bip. ex Maxim. var. oldhamii (Maxim.) Kitam.

Kitam., Memoirs of the College of Science, Kyoto Imperial University. Series B. Biology 23: 111. 1956. (Mem. Coll. Sci. Kyoto Imp. Univ., Ser. B, Biol.)

各語言俗名

英

Sward wound weed.
日

さまのるとく. おばにがな. にがなもどき. あつばにがな. おおばにがな.
原

Uiruku (Atayal).
台

It ki hiong. Siang pán to. San pán to. Ng hoe chháu. Tō kong eng. To siong chháu.

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 robust, to 90 cm long; cauline leaves few, stem and leaves sparsely covered with minute multicellular scale-like hairs.
Radical leaves broadly oblong to oblong-lanceolate, to 5–25(–55)×0.8–5 cm, apex usually obtuse, base subsessile or petiolate, usually pinnatilobed; cauline leaves 1–3, lanceolate or linear-lanceolate, gradually narrowed to a petiole-like base. Inflorescence many headed, corymbose or pseudo-umbellate.
Heads 8–10 mm across, ca. 10-flowered; peduncle slender, 6–8 mm long. Involucre cylindric, ca. 5 mm long, outer bracts calyculate, 1–1.5 mm long, ovate-lanceolate, inner bracts 8–10, linear-lanceolate, becoming thick-keeled toward base. Florets 8–11; corolla yellow, 6.5–7.5×1.5–2 mm.
achenes narrowly lanceolate, slightly compressed, 4–5 mm long. Pappus 2.5–3 mm long, bristles unequal.
<i>Ixeridium laevigatum</i> is exceedingly variable in plant size and dissection of leaves.

分布

台灣 : widespread from the seacoast to mid elevations, in littoral areas, riversides and on gravelly limestone, 0–2,300 m.
世界 : Southeast Asia, Japan and southern China.

引證標本

TAIPEI: Hopingtao, Leu 1243; Pinglin, Peng 10581. ILAN: Ssuyuan, Peng 5583. TAOYUAN: Peichatienshan, Peng 10116; Paling, Peng 11031. HSINCHU: Hsinfeng, Peng 10383; Hengshan, Wang 765. MIAOLI: Kuanwu to Leshan, Peng 9405. TAICHUNG: Hoping, Shen 467. NANTOU: Tungpu to Kuankao, Peng 8072; Tatachia, Peng 11460. CHIAYI: Alishan, Ho 1138. TAINAN: Yangnu Lake, Chen 530. KAOHSIUNG: Tengchih, Chen 574; Maolin, Chen 625. PINGTUNG: Wutai, Lin 393; Nanjenshan, Wang 510. TAITUNG: Haituan, Yakou, Peng 11708; Lanyu Is., Peng 6721. HUALIEN: Tali to Tatung, Chen 157; Lanshan, Peng 9895.