Viola rostrata var. japonica

Family	Violaceae
Scientific Name	Viola rostrata Pursh var. japonica (W. Becker & H. Boissieu) Ohwi
Synonyms	Viola rostrata Pursh subsp. japonica W. Becker & H. Boissieu
Common Name	(Japanese Common Name) nagahashi-sumire [long spurs viola], tengu-sumire [tengu = a long-nosed goblin]
	(English Common Name) none
Distribution	(Japan) Hokkaido (southwest region), Honshu (Japan Sea side), Shikoku
	(Other Nations) none
Chromosomal number	2n=20
Description	Leaves 2-4cm length. Flowers pale purple, spurs 1-1.5cm, flowering in March to May. Perennial plants.
Reference	Viola rostrata Pursh var. japonica (W. Becker & H. Boissieu) Ohwi
Note	Many authors argue that Viola rostrata var. japonica is a same species as Viola rostrata (Viola rostrata var. rostrata).

March 2007 at forest edge in Niigata Prefecture	March 2007 at forest edge in Niigata Prefecture	March 2007 at forest edge in Niigata Prefecture