condition mean min max Sterile Frond 9.811273333333332 0.0 22.7865 Fertile Frond 4.0226733333333335 0.0 10.4761 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.0 0.0 0.0 Root 0.0 0.0 0.0