condition mean min max Sterile Frond 0.167127 0.0 0.267733 Fertile Frond 3.055963333333333 0.0 7.48734 Young Stem with Root 0.07267566666666667 0.0 0.218027 Mature Stem with Root 0.496903 0.0 0.827842 Root 0.0 0.0 0.0