condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 2.8176799999999997 0.34411 5.91536 Root 5.739381666666667 0.660125 15.5353