Actaea japonica

Family	Ranunculaceae
Subfamily	Ranunculoideae
Tribe	Actaeeae
Scientific name	Actaea japonica Thunberg
Synonyms	Actaea acerina Prantl; Actaea purpurea (P. K. Hsiao) J. Compton; Cimicifuga acerina (Siebold & Zuccarini) C. Tanaka; Cimicifuga acerina (Siebold & Zuccarini) C. Tanaka forma hispidula P. K. Hsiao; Cimicifuga acerina (Siebold & Zuccarini) C. Tanaka forma purpurea P. K. Hsiao; Cimicifuga acerina (Siebold & Zuccarini) C. Tanaka forma strigulosa P. K. Hsiao; Cimicifuga acerina (Siebold & Zuccarini) C. Tanaka var. acerina Huth; Cimicifuga acerina (Siebold & Zuccarini) C. Tanaka var. intermedia Hara; Cimicifuga acerina (Siebold & Zuccarini) C. Tanaka var. macrophylla (Koidzumi) Hara; Cimicifuga acerina (Siebold & Zuccarini) C. Tanaka var. peltata (Makino) Hara; Cimicifuga japonica (Thunberg) Sprengel; Cimicifuga japonica (Thunberg) Sprengel; var. macrophylla (Koidzumi) Hara; Cimicifuga macrophylla Koidzumi; Cimicifuga chinensis Koidzumi; Cimicifuga macrophylla Koidzumi; Cimicifuga peltata (Makino) Koidzumi; Cimicifuga purpurea (P. K. Hsiao) C. W. Park & H. W. Lee; Pityrosperma acerinum Siebold & Zuccarini; Thalictrodes japonicum (Thunberg) Kuntze
Common name	(Japanese common name) oh-ba-shoma (オオバショウマ, 大葉升麻 [meaning: large leaved shoma (shoma = a traditional Chiese medicine)])
	(English common name) none
Distribution	(Japan) Honshu, Shikoku, Kyushu
	(Other nations) Korea, China
Habitat	Mountane forest
Chromosomal number	2n=16
Description	Plants electing 40-110cm tall. Leaves ternate, leaflets each 10-30cm wide, hairy at edge. Flowers white petals 4-6mm, calyxs 4-6mm long, stamens 7mm long, flowering in August to September. Seeds 1.2mm long. Perennialp plants.
Reference	Actaea japonica Thunb.
	Cimicifuga japonica (Thunberg) Sprengel
	Cimicifuga japonica (Thunb.) Spreng.

September 2007 at Mt. Tsukuba	September 2007 at Mt. Tsukuba	September 2007 at Mt. Tsukuba

August 2008 at Nikko Botanical Garden