Epimedium koreanum




Family Berberidaceae
Subfamily Berberidoideae
Tribe Berberideae
Subtribe Epimediinae
Scientific name Epimedium koreanum Nakai
Synonyms Epimedium grandiflorum C. Morren subsp. koreanum (Nakai) Kitamura; Epimedium macrosepalum Stearn; Epimedium sulphurellum Nakai
Common name (Japanese common name) ki-bana ikari-sou (キバナノイカリソウ, 黄花碇草 [meaning: yellow flowers anchor weed])
(English common name) none
Distribution (Japan) Hokkaido, Honshu
(Other nations) Korea, China
Habitat Mountane forest (Japan Sea side)
Chromosomal number 2n=8
Description Plants 20-40cm tall. Leaves biternate, leaflets each 5-15cm long. Flowers yellow, flowering in April to May. Perennial plants.
Reference Epimedium koreanum Nakai
Polysaccharide PS-A obtained from barrenwort deriving from plants belonging to the genus Epimedium, process for preparation thereof and phylactic and immunostimulating agents comprising said polysaccharide PS-A effective component (US Patent 4528188/1985)
Icariin preparations (US Patent 6123944/2000)
Compositions comprising icariside I and anhydroicaritin and methods for making the same (US Patent 6399579/2002)
Safe pharmaceutical composition for treating and preventing infertility and increasing immune function (US Patent 6476203/2002)
Preparation of tobacco having reduced contents of nicotine and tar (US Patent 6772769/2004)
Medicament containing Epimedium extract for treatment of prostatic hyperplasia and prostatitis (US Patent 7250182/2007)



April 2007
at Nikko Botanical Garden
April 2007
at Nikko Botanical Garden