condition mean min max Sterile Frond 12.2016 0.0 36.6048 Fertile Frond 0.6809266666666667 0.0 2.04278 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.0 0.0 0.0 Root 0.0 0.0 0.0