condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 5.6009 0.0 16.8027 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.113696 0.0 0.341088 Root 0.6547403333333333 0.0 1.59326