condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.016601233333333333 0.0 0.0498037 Young Stem with Root 5.304633333333333 0.0 13.4188 Mature Stem with Root 0.0 0.0 0.0 Root 0.0 0.0 0.0