Mallotus japonicus




Family Euphorbiaceae
Scientific name Mallotus japonicus (L. f.) Müller Argoviensis
Synonyms Croton japonicum Thunberg; Croton japonicus L. f.; Rottlera japonica Sprengel
Common name (Japanese common name) aka-me-gashiwa (アカメガシワ, 赤芽柏 [meaning: red buds kashiwa (kashiwa = Quercus dentata Thunberg)])
(English common name) none
Distribution (Japan) Honshu, Shikoku, Kyushu, Okinawa
(Other nations) Korea, China, Taiwan
Chromosomal number 2n=36, 72
Description Plants 5-10m tall. Leaves 10-20cm long. Flowers pale yellow, flowering in July to August. Deciduous. Arbor trees.
Reference Mallotus japonicus (L. f.) Müll. Arg.
Mallotus japonicus (Linnaeus f.) Müller Argoviensis
Mallotus japonicus (L. f.) Müll. Arg.
Food composition containing antimicrobial plant distillate (US Patent 5525340/1996)
Antacid compositions (US Patent 5651997/1997)
Method of stimulating gastrointestinal motility with ellagic acid (US Patent 5843987/1998)
Composition for reducing mental fatigue, composition for maintaining and enhancing concentration, and composition for maintaining and enhancing mental vigor (US Patent 6462051/2002)
Cosmetic composition comprising extract from Mallotus japonicus for improving skin wrinkle (WIPO Patent WO/2005/039524)
Aromatase inhibitor (WIPO Patent WO/2009/066712)



Male Plants


July 2007
at Mt. Tsukuba
July 2007
at Mt. Tsukuba
July 2007
at Mt. Tsukuba



July 2007
at Mt. Tsukuba
July 2007
at Mt. Tsukuba