condition mean min max Sterile Frond 0.18657066666666666 0.0 0.353265 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.36388333333333334 0.0 0.901046 Mature Stem with Root 4.78385 0.0 7.23162 Root 1.7869169999999999 0.181081 2.62809