condition mean min max Sterile Frond 5.252336666666666 0.0 12.4428 Fertile Frond 4.53836 0.0 8.19952 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.7003953333333334 0.0 1.59514 Root 0.340152 0.0 0.698904