いわうめ (岩梅) [Index] [Back] わが国の本州、中部地方以北から北海道、それに朝鮮半島や極東ロシア、シベリア、カムチャッカ半島、アラスカに分布しています。高山帯の岩場に生え、高さは２〜５センチになります。密なマット状の群落をつくります。葉は小さな倒卵形で全縁、密に互生します。７月から８月ごろ、淡い緑黄白色の花を咲かせます。花冠は、直径１センチほどの短い鐘形で５中裂し、盛りが過ぎるとしばしば赤みを帯びます。 韓国語では「アンメ（암매）」または「トルメファナム（돌매화나무）」です。「アンメ」は「岩梅」、「トルメファナム」は「石梅木」の韓国式の漢字読みでそのまま読んだものです。 イワウメ科イワウメ属の常緑小低木で、学名は Diapensia lapponica var. obovata (syn. Diapensia lapponica ssp. obovata、Diapensia obovata)。英名は Alaskan pincushion plant。 The Alaskan pincushion plant (Diapensia lapponica var. obovata) belongs to the family Diapensiaceae. It is an evergreen shrub that is found from the Chubu region and northward on Honshu, through Hokkaido in Japan, as well as on the Korean Peninsula, in the Russian Far East, Siberia, the Kamchatka Peninsula, and Alaska. This tree grows on the rocky area of the alpine zone, and its height is 2-5 cm. It creates a dense mat-like community. The leaves are small obovate, entire, and alternate each other closely. The pale greenish yellowish flowers come in July to August. The corolla is 5 split apart, short bell-shaped with a diameter of about 1 cm, and often reddish when it is overgrown. In Korean, it's called "am-mae" (암매) or "tol-mae-hwa-na-mu" (돌매화나무). "am-mae" is the Korean pronunciation of the Chinese characters for "岩梅", and "tol-mae-hwa-na-mu" is the Korean pronunciation of the Chinese characters for "石梅木", both read as written. 山形県西川町月山沢「月山」にて、2018年06月23日撮影。 Shu Suehiro shu@botanic.jp