condition mean min max Sterile Frond 1.4719499999999999 0.0 4.41585 Fertile Frond 3.048557 0.0 8.81634 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.091453 0.0 0.274359 Root 0.13993766666666665 0.0 0.419813