Veronicastrum sibiricum (species of flowering plant)
A perennial plant native to East Asia, often found in mountainous areas. The name is usually written in katakana.
Veronicastrum sibiricum blooms with purple flowers in summer.
Rare kanji spelling; the plant name is normally written in kana.
Usually written 九蓋草 or 九階草, the name refers to the plant’s several tiers of whorled leaves; 九 “nine” expresses their numerous layered appearance.