condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 2.2048200000000002 0.0 6.61446 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.2532493333333333 0.0 0.47198 Root 0.0 0.0 0.0