The florescence consists of a conic appendix growing upright on a so-called spadix and a horn-like spathe opening upward with the limb of the spathe (projecting part) recurving to the stem.
いわゆる肉穂花序の付属体は円錐形で高くまっすぐに伸び上がり、仏縁苞は上向きにラッパ状に開き、舷部（伸び出した部分）は背面に反り返る。