Adonis ramosa

Family	Ranunculaceae
Subfamily	Ranunculoideae
Tribe	Adonideae
Scientific name	Adonis ramosa Franchet
Synonyms	Adonanthe ramosa (Franchet) Chrtek & Slavikova; Adonis pseudoamurensis W. T. Wang; Adonis ramosa Franchet subsp. fupingensis W. T. Wang
Common name	(Japanese common name) fukuju-sou (フクジュソウ, 福寿草 [meaning: happy-longlife weed])
	(English common name) Amur adonis
Distribution	(Japan) Hokkaido, Honshu, Shikoku, Kyushu
	(Other Nations) Russia, Korea, China
Chromosomal number	2n=32 (4x)
Description	Stems 10-30cm. Flowers yellow 3-4cm, flowering in February to May. Perennial plants.
Reference	Adonis ramosa Franchet
	Medicament for improving the failure of accommodation (US Patent 20050171214)
Note	Recently, it was recognized that there are four different similar species in Japan: Adonis ramosa Franchet (2n=4x=32), Adonis amurensis Regel & Radde (2n=2x=16: syn. Adonis amurensis Regel & Radde var. angustiloba A. I. Baranov & Skvortsov; Adonis amurensis Regel & Radde var. uniflorus Makino; Adonis apennina L. var. danurica Maximovicz; Adonis barthei Franchet; Adonis vernalis L. var. amurensis (Regel & Radde) Finet & Gagnepain), Adonis multiflora Nishikawa & Koji Ito (2n=2x=16) and Adonis shikokuensis Nishikawa ＆ Koji Ito (2n=2x=16).
	Adonis ramosa occurs in Hokkaido, Honshu, Shikoku and Kyushu, Adonis amurensis occurs in Hokkaido, Adonis multiflora occurs in Honshu and Ksyushu and Adonis shikokuensis occurs in Shikoku and Kyushu.
	See, A New Species of Adonis (Ranunculaceae）from Shikoku, Western Japan, Tsunehiko Nishikawa and Koji Ito, Bull. Natn. Sci. Mus., Tokyo, Ser. B, 27(2,3), pp. 79－83, September 22, 2001.

February 2008 at Tsukuba Botanical Garden

early March 2008 at Ibaraki Prefecture Flower Center	early March 2008 at Ibaraki Prefecture Flower Center	early March 2008 at Ibaraki Prefecture Flower Center

April 2007 at Akagi Nature Park	April 2007 at Akagi Nature Park