Eleocharis acicularis

牛毛顫

Eleocharis acicularis (L.) Roem. & Schult.

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

Roem. & Schult., Systema Vegetabilium 2: 154. 1817. (Syst. Veg.)

台灣首次記錄發表文獻

Koyama, Flora of Taiwan 5: 219. 1978. (Fl. Taiwan, 台灣植物誌)

異名

Eleocharis acicularis (L.) Roem. & Schult. var. longiseta Svenson

Ohwi, Memoirs of the College of Science, Kyoto Imperial University. Series B. Biology 18: 36. 1944. (Mem. Coll. Sci. Kyoto Imp. Univ., Ser. B, Biol.)

各語言俗名

中

松葉藺.
英

Cow hairs.
日

まつばい.

參考資料

Yang, A list of plants in Taiwan . 1982. (List Pl. Taiwan, 台灣植物名彙)

特徵描述

生活型

herb

形態特徵

Small plants with slender stolons, often forming a mat, culms capillary, densely tufted, 3-10 cm tall, 0.2-0.3 mm thick, closed at very base with a few sheaths only.
Sheaths 2-10 mm long, white-hyaline and at times tinged with reddish brown, orifice obliquely truncate, obtuse, hyaline-margined.
Spikelet lanceolate to ovate, 2-4 mm long, subacute at apex, loosely few-flowered, pale green or slightly reddish brown tinged, glumes loosely imbricate or often indistinctly 2-ranked in lower part of spikelet, ovateoblong, 1-2 mm long, subobtuse or subacute at apex, keel green.
Achenes obovate-oblong, 0.8-1 mm long, gradually tapering to base, contracted at apex, obtusely trigonous, pale, sides manifestly tuberculate with 3 or 4 rows of transversely oblong epidermal cells; style 3-fid, base depressed-conical, 1/2-1/3 its width of achene. Hypogynous bristle 3 or 4, surpassing achene.

分布

台灣 : Rather common on wet soil, as in nonflooded paddy fields.
世界 : Widely spread in boreal and subtropical parts of North America and Eurasia.

引證標本

TAIPEI: Nankang, Chuang 4127; Shihlin, Peitou, Faurie 172, Tanaka & Shimada 13443. HSINCHU: Hsinchu, Shimada 4432. KAOHSIUNG: Kaohsiung, Shimada 4435. TAITUNG: Lanyu Is., Kuoh 5006.