Ozesou - Ozesou

Japanese: オゼソウ - おぜそう

This is a perennial plant of the Liliaceae family endemic to Japan, with only one genus and one species, and grows only in the serpentine areas of Mt. Tanigawa and Mt. Shibutsu in Gunma Prefecture, and Toikanbetsu in the upper reaches of the Teshio River in Hokkaido (illustration). It belongs to the subfamily Liliaceae, which has the most primitive characteristics of the Liliaceae family, and is an interesting plant from a phylogenetic perspective. Its Japanese name is derived from Oze (Mt. Shibutsu), where it was discovered. It has a long underground stem and actively reproduces vegetatively. The leaves grow in clusters from the branches of the underground stem, with linear blades that are folded at the midrib like the leaves of an iris.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

1属1種の日本固有のユリ科多年草で，群馬県谷川岳，至仏山および北海道天塩川上流の問寒別（といかんべつ）の蛇紋岩地帯にのみ生育する（イラスト）。ユリ科の中でも最も原始的な特徴をもつシュロソウ亜科に属し，系統学的にも興味深い植物である。和名は発見地の尾瀬(至仏山)にちなむ。地下茎は長くはい，活発な栄養繁殖を行う。葉は地下茎の枝から叢生（そうせい）し，葉身は線形で，アヤメの葉のように中肋で折りたたまれている。

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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