condition mean min max Sterile Frond 0.7104981333333333 0.0 2.04567 Fertile Frond 0.956623 0.188565 2.15856 Young Stem with Root 1.4603513 0.0740489 3.35736 Mature Stem with Root 2.48324 1.09356 4.26284 Root 6.17492 3.21187 11.0885