condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 1.0130413333333332 0.0 2.05953 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.091453 0.0 0.274359 Root 3.16989 0.0 8.31634