condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 2.216309 0.410377 4.50803 Young Stem with Root 5.5868 0.0 16.7604 Mature Stem with Root 11.098786666666667 1.02326 20.2566 Root 11.139520000000001 1.59326 27.0028