condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 1.5120623333333332 0.0 4.39551 Root 161.2885086 0.0641358 482.733