A medium-sized herb of the Melastomataceae family that prefers to grow in shady, damp mountain forests. Its Japanese name comes from its location in the wetlands. It is summer-green. The rhizomes are creeping and the leaves grow rather densely. The petiole is slightly reddish purple, juicy, and up to 40 cm long, light brown at the base, lanceolate, and sparsely covered with scales along the entire edge. The leaf blade is oblong to elliptical-ovate, longer than the petiole, bipinnately mid-lobed to compound, glabrous or hairy. The pinnae are almost opposite and oblong-lanceolate. The pinnae are variously incised, broadly or narrowly attached to the rachis at the base, and the lobes have shallow blunt serrated edges or entire edges. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
陰湿な山地林下に好んで生えるシダ植物メシダ科の中型草本。湿気地という生育場所から和名がついた。夏緑性。根茎ははい,葉をやや密につける。葉柄は紅紫色をやや帯び,肉汁質,長さ40cmに達し,基部は淡褐色,披針形で,全縁の鱗片がまばらにつく。葉身は長楕円形から楕円状卵形,葉柄より長い,2回羽状中裂から複葉で,無毛または有毛。羽片はほぼ対生し,長楕円状披針形。小羽片はさまざまな程度に切れ込み,基部は広くまたは狭く羽軸につき,裂片は浅い鈍鋸歯縁または全縁。
出典 株式会社平凡社世界大百科事典 第2版について 情報 |
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