Penstemon frutescens (species of beardtongue)
A specific plant species native to Japan; a botanical term.
Penstemon frutescens is a perennial plant that grows on rocky alpine slopes.
Standard katakana spelling for this plant name.
Kanji spelling is rare; the plant name is usually written in katakana.
The name イワブクロ literally means 'rock bag', likely from its habitat on rocky cliffs and the shape of its flowers.