condition mean min max Sterile Frond 1.30908 0.0 3.92724 Fertile Frond 3.1721033333333337 0.0 9.51631 Young Stem with Root 5.228266666666666 0.0 15.6848 Mature Stem with Root 1.8921700000000001 0.0 5.67651 Root 3.30808 0.0 9.92424