noun
Penstemon frutescens (species of beardtongue)
A specific plant species native to Japan; a botanical term.
イワブクロは高山の岩場に生える多年草です。
Penstemon frutescens is a perennial plant that grows on rocky alpine slopes.
The name イワブクロ literally means 'rock bag', likely from its habitat on rocky cliffs and the shape of its flowers.