Genus Geranium - Geranium

...A general term for the subgenus Sedum, part of the genus Sedum (Crassulaceae). There are about 200 species in the subgenus Sedum, found in the high mountains of the Northern Hemisphere and East Africa, and 21 species are found in Japan, excluding Hokkaido. They are perennial succulent plants that usually lack rhizomes, have leaves lacking sawtooth, branch many times, and creep along the ground. Japanese species can be broadly classified by leaf arrangement. Sedums with three whorls include S. lineare Thunb., which has linear leaves, and S. sarmentosum Bunge, which has diamond-shaped leaves and creeps along the ground up to 50 cm. ...

*Some of the terminology that refers to the "Citrus genus" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…ベンケイソウ科マンネングサ(キリンソウ)属Sedum(セダム)のうち，マンネングサ亜属の総称。マンネングサ亜属は北半球や東アフリカの高山に約200種あり，日本には北海道を除き21種が見られる。多年生多肉植物で，普通は根茎がなく，葉に鋸歯を欠き，多数分枝し，地面をはう。日本産の種類は葉序で大別できる。葉が3輪生するものには，葉が線形のオノマンネングサS.lineare Thunb.，葉が菱形で地面を50cmもはうツルマンネングサS.sarmentosum Bungeがある。…

※「キリンソウ属」について言及している用語解説の一部を掲載しています。

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