condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.08203433333333333 0.0 0.246103 Young Stem with Root 0.22792900000000002 0.0 0.683787 Mature Stem with Root 6.547036666666667 0.0 18.3688 Root 2.0482299999999998 0.0 3.1485