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 6.2822952999999995 0.0131759 15.2113 Root 0.9663809999999999 0.0 1.92864