condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 1.4050866666666666 0.0 4.21526 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 4.944588666666666 0.644786 9.50619 Root 0.6846450000000001 0.0 1.8865