condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 2.43871 0.0 5.09585 Mature Stem with Root 0.13536533333333334 0.0 0.406096 Root 0.0 0.0 0.0