also: すみれさいしん
noun
Viola vaginata; a species of violet
A specific violet species native to Japan; botanical term. Usually written in katakana.
スミレサイシンは山地の湿った場所に生える。
Viola vaginata grows in moist mountainous areas.
The name combines 菫 (sumire, 'violet') and 細辛 (saishin, referring to wild ginger or Asarum-like plants), likely from the leaf shape resembling wild ginger.