condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 4.4359 0.0 13.3077 Mature Stem with Root 0.0 0.0 0.0 Root 0.7736966666666666 0.0 2.32109