condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.015969233333333333 0.0 0.0479077 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 1.1050847666666668 0.0446553 2.97534 Root 2.70208 0.0 7.28307