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Katakuri (''Erythronium japonicum''; (日本語:片栗)) is a pink-flowered species trout lily, belonging to the Lily family and native to Japan, Korea, the Russian Far East (Sakhalin Island, Kuril Islands) and northeastern China (Jilin and Liaoning).〔(Flora of China v 24 p 126 )〕〔(Kew World Checklist of Selected Plant Families )〕 It is a spring ephemeral, blooming April–June in woodlands. ''Erythronium japonicum'' has a stem up to 20 cm long, although as much as 30% of the stem may be underground. Bulb is elongated, up to 6 cm long but rarely more than 1 cm wide. Leaves are broadly elliptical to lanceolate, the blade up to 12 cm long and 7 cm wide. Flowers are solitary, rose-colored.〔〔Decaisne, Joseph. 1854. Revue Horticole, sér. 4, 3: 284.〕〔P.Y.Fu & Q.S.Sun. 1992. Flora Liaoningica 2: 1159.〕〔I.Yamam. & Tsukam. 1932. Flora Hakodate 192.〕〔Sun, Q.S. 1995. Bulletin of Botanical Research, Harbin 15(3): 332–333.〕〔Okuyama. 1955. Journal of Japanese Botany 30: 32.〕 Applying the generic common name ''trout lily'' may be somewhat of a misnomer, because in the Japanese species, the individual plant may or may not exhibit the flecked dark markings on the leaves, which is emblematic of that common name (see gallery below). ==Protective status== Reporting is mixed on whether it should be regarded as endangered in Japan. One source adds it to a list of wildflowers that should be included as endangered, but the so-called or environmental specialist certification, run by the (TCCI), has had an exam question in the past, where the correct answer to "Is katakuri an endangered " was "no".〔, p.199〕 The Japanese ministry (MOE)'s version of the ''Red Data Book'' has not handed down an assessment of the whole species,〔. yellow=''jun-zetsumetsu kigu shu''(NT); orange=絶滅危惧IB (VU); mauve=絶滅危惧I (EN/CR). See :ja:template:生物分類表〕 even though in the ''Red Data Book'' compiled by individual prefectures, its status is evaluated at "near threatened" (''jun-zetsumetsu kigu shu'') in Hyogo and Mie,〔 and rated vulnerable-endangered in Shikoku and southern Kanto.〔 This woodland plant is more vulnerable, since it has a very short season and is slow-growing.〔 It needs to grow into a 7-8 year old plant before it finally blooms,〔 so will not rebound in numbers once taken. In Niiharu (Midori-ku, Yokohama), the colony was entirely wiped out (poached) overnight shortly after media coverage about it blooming in the area.〔 A colony that can be viewed within the confines of metropolitan Tokyo is at which translates approximately to "Shimizuyama grove of respite", in Nerima-ku. This is somewhat in the neighborhood of the Tomitaro Makino memorial garden which also has a small number of plants planted. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Erythronium japonicum」の詳細全文を読む スポンサード リンク
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