condition mean min max Sterile Frond 0.13794633333333334 0.0 0.413839 Fertile Frond 2.1476233333333337 0.0 6.00635 Young Stem with Root 0.0256796 0.0 0.0770388 Mature Stem with Root 0.096086 0.0 0.288258 Root 0.0 0.0 0.0