Schoenoplectus juncoides

螢藺

Schoenoplectus juncoides (Roxb.) Palla

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

Palla. 1899. Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 10: 299. (Bot. Jahrb. Syst.)

台灣首次記錄發表文獻

Koyama. 1978. Flora of Taiwan 5: 212. (Fl. Taiwan)

異名

Scirpus juncoides Roxb.

Ohwi. 1944. Memoirs of the College of Science, Kyoto Imperial University. Series B. Biology 18: 113. (Mem. Coll. Sci. Kyoto Imp. Univ., Ser. B, Biol.)
Scirpus ohwianus T. Koyama

Koyama. 1956. The Botanical magazine, Tokyo 69: 212. (Bot. Mag. Tokyo)
Scirpus juncoides Roxb. var. ohwianus (T. Koyama) T. Koyama

T. Koyama. 1958. Journal of the Faculty of Science, Imperial University of Tokyo. Section III, Botany 7(6): 311. (J. Fac. Sci. Univ. Tokyo, Sect. 3, Bot.)
Scirpus erectus Poir.

Henry. 1896. A List of Plants from Formosa 105. (List Pl. Formos.)

各語言俗名

中

螢藺、大井氏水莞
台

Soàn á chháu
日

ほたるい

參考文獻

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

特徵描述

生活型

herb

形態特徵

Tufted in clumps without conspicuous rhizome. Culms 15-70 cm tall, 1-4 mm thick, subterete or obtusely several angled, light green, dull, clothed at base with few sheaths only.
Sheaths 3 or 4, lower ones scale like, brownish, upper ones 5-15 cm long, pale-green, obliquely truncate at mucronate orifice.
Inflorescence a pseudo-lateral head with (1-)2-9(-12) spikelets; bract 5-15 cm long, rather suddenly subacute at apex, 1-furrowed on ventral side, dilated at base. Spikelets oblong to ovoid-oblong, 6-18 mm long, 3-6 mm wide, straw-colored, rather suddenly contracted to subobtuse apex, densely many-flowered.
Glumes oval to ovate-oval, 3-4 mm long, 1.8-2.7 mm wide, thickly membranaceous, pale and brown-tinged, apex rounded to shallowly emarginate and mucronate, keel broad, green 1- or 3-nerved. Achenes broadly obovate, unequally biconvex, 1.8-2 mm long, 1.5 mm wide, suddenly contracted to cuneate base, rounded to mucronate apex, side maturing dark brown, shiny, transversely wrinkled; style 2-2.2 mm long, somewhat flattened; stigmas 2, occasionally with a rudimentally third one. Hypogynous bristles 4-6, retrorsely scabrous except at base, 4 as long as or slightly surpassing achene, remainder 1/2 as long as achene or shorter.

分布

台灣 : Wet places, often seen in rice fields.
世界 : From Japan southwards to Malaysia, southwestwards to India and Sri Lanka, and disjunct to Hawaii and Fiji.

引證標本

TAIPEI: Taipei, Suzuki 7785; Chilian, Suzuki 20585; Shihmen to Yehliu, Hsu 3853; Fuloong, Kuoh 4154. TAICHUNG: Tarao, Asikawa 560. NANTOU: Sun Moon Lake, Hsu 12441; Neihuko, Liu 1029; Chichi, Kao 3922. KAOHSIUNG: Fengshan, Chuang 4142. PINGTUNG: Pingtung, Matuda 421; Nanjenshan, Kuoh 13163. TAITUNG: Taitung, Kobayashi s. n. Apr 1906.