Aster indicus

雞兒腸

Aster indicus L.

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

L., Species Plantarum 2: 876. 1753. (Sp. Pl.)

台灣首次記錄發表文獻

Forbes & Hemsl., The journal of the Linnean Society of London. Botany 23: 413. 1888. (J. Linn. Soc., Bot.)

異名

Kalimeris indica (L.) Sch. Bip.

Kitamura, Acta phytotaxonomica et geobotanica eng 6: 50. 1937. (Acta Phytotax. Geobot.)

各語言俗名

中

田邊菊. 馬蘭.
英

Field aster.
日

いどよめな. こよめな.

參考文獻

W. C. Lin, Wild flowers of Taiwan - the 1300 species found in the lower elevation . 2005. (Wild flowers of Taiwan)
Yang, A list of plants in Taiwan . 1982. (List Pl. Taiwan)

特徵描述

生活型

herb

形態特徵

Perennial suffrutescent herbs, rhizomes elongate, stoloniferous. Stems terete, 30–70 cm tall, erect, branching, nearly glabrous or sparsely pubescent upward.
Radical leaves elliptic to oblanceolate, withered at anthesis. Cauline leaves elliptic to oblanceolate, thin chartaceous, middle leaves 3–10 cm long, 1–2.5 cm wide, apex acute, narrowed gradually to base, subsessile, coarsely dentate apically, nearly glabrous or scarcely puberulous on both surfaces, minutely ciliolate, mid veins convex and sparsely pubescent on lower surface; leaves on upper branches smaller, lanceolate, entire, 1–2 cm long.
Heads few to many in loose corymbs, 1.5–2.5 cm across, peduncle, 3–4.5 cm long. Involucre hemispheric, 4.5–5.5 mm long, 5.5–6 mm wide, bracts green to purplish brown, 3- or 4-seriate, oblanceolate, apex triangular, acute, sparsely pubescent apically, margins submembranaceous, ciliolate, midrib evident, inner bracts gradually longer 3.5–4.5 mm long, 1.5–2 mm wide, outer bracts 3–4 mm long, 1–1.5 mm wide. Ray florets 15–20 in one row, sometimes in 2 series, ligules bluish purple, 6–10 mm long, 1.4–2.3 mm wide, tube 1.5–1.7 mm long. Disc florets yellow, 3.5 mm long, 5-lobed. Pappus inconspicuous, bristles unequal, few, reddish, 0.2–0.4 mm, sometimes lacking.
Achenes dark brownish, obovate-oblong, compressed, 1.5–2 mm long, 0.5–1.3 mm wide, sparsely pubescent, with sparse sessile glands on upper part.
Chromosome number, 2n = 54 (Peng & Hsu, 1978; Gu, Cathaya 1: 4. 1989).

物候

Fl. May-Oct.

分布

台灣 : from the seacoast to low elevation wet places.
世界 : Distributed widely: southeast Asia, central to southern China, South Korea, Japan, Indo-china and India.

引證標本

TAIPEI: Tanshui, Faurie 226 &1141; Sanhsia, Peng 6229. ILAN: Tali, Shimada 5472B. HSINCHU: Hengshan, Peng 12149. CHIAYI: Peikang, Peng 6004; Lutsao, Peng 10082. TAINAN: Tungshan, Peng 7092. TAITUNG: Mt. Liyushan, Peng 10628.