condition mean min max Sterile Frond 2.756264 0.0 7.88573 Fertile Frond 0.19056966666666666 0.0 0.571709 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.0 0.0 0.0 Root 0.0321173 0.0 0.0963519