condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 3.0053566666666662 0.0 9.01607 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.62586 0.0 1.87758 Root 0.0 0.0 0.0