Euphorbia bifida

華南大戟

Euphorbia bifida Hook. & Arn.

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

Hook. & Arn., Bot. Beechey Voy. 213. 1837.

台灣首次記錄發表文獻

Ed. Comm., Red List TW Plants . 2017.

異名

Euphorbia serrulata Kein. & Bl.

Forbes & Hemsl., The journal of the Linnean Society of London. Botany 26: 417. 1894. (J. Linn. Soc., Bot.)
Chamaesyce parannaquensis (Blanco) Hara

Hara, Journal of Japanese Botany 14: 356. 1938. (J. Jpn. Bot.)
Euphorbia vachellii Hook. & Arn.

Keng, Taiwania 6: 45. 1955.
Chamaesyce vachellii (Hook. & Arn.) Hurusawa

Lin et al., Botanical bulletin of Academia Sinica 36: 235. fig. 12. 1991. (Bot. Bull. Acad. Sin.)

各語言俗名

日

あわゆきにしきそう. みやこじまにしきさう.
台

Kim siàh liû.

參考文獻

Yang, Y., Riina, R., Morawetz, J.J., Haevermans, T., Aubriot, X. & Berry, P.E., Taxon 61: 764-789. 2012.
Yang, A list of plants in Taiwan . 1982. (List Pl. Taiwan)

特徵描述

生活型

herb

形態特徵

Herb; ascending to erect, sparsely puberulent when young; stipules free, triangular, 0.3-0.5 mm long, incised, glabrous.
Leaves green, linear to linear-oblong, 20–60 mm long, 2–7 mm wide, acute to obtuse at apex, obliquely rounded at base, serrulate at margin, subglabrous above, puberulent-sericeous below, petioles 1.5–2.5 mm long, puberulent-sericeous abaxially.
Cyathia in densely pedunculate cymes together with a solitary cythium at nodes; involucres turbinate to campanulate, 0.5–1 mm long, glabrous or nearly so outside, pilose inside; stalks 0.5–2.3 mm long; glands 4, rounded to transversely elliptic, 0.1-0.3 mm long; appendages white to reddish, reniform to orbicular, entire to subundulate, 0.2-0.8 mm long, 0.1-0.6 mm wide; bracteoles linear to linear-oblanceolate, lacerate-laciniate at margin. Male flowers 5–20, anthers red. Female flowers with glabrous pedicel and ovary; style and stigma 0.2-0.4 mm long.
Capsules 1.5–2 mm long, 1.9–2 mm diam., exserted, nutant, glabrous, the pedicels to 3 mm long; seeds brackish, tetragonal, elliptic-ovoid, 1.1–1.3 mm long, 0.8–1 mm diam, transversely rugose.

分布

台灣 : It is frequently associated with farm crops and weeds in Taiwan.
世界 : Southern China, Malaysia, from the Philippines to Polynesia, Australia, the Ryukyus and Japan.

引證標本

TAIPEI: Fanshuliao, Mori 3881. MIAOLI: Tsaochiao, Shimada 3152C. NANTOU: Tanan, Hayata s. n. 1916. CHANGHUA: Hsihu, Sakida s. n. 1936; Peitou, Shimada s. n. 1909; Hsichou, Takeoito s. n. 1922; Houliao, Hsu 4736. YUNLIN: Iwu, Yang 3774. CHIAYI: Chiayi City, Kao 7893. TAINAN: Chiali, Morimoto 106. KAOHSIUNG: Chishan, Suzuki 6754. PINGTUNG: Hsiaoliuchiu, Hosokawa 1943. TAITUNG: Peinan, Kobayashi 1594. HUALIEN: Fenglin, Lu 8501