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 8.666599333333332 0.242048 22.5097 Root 1.1483166666666667 0.0 2.10207