condition mean min max Sterile Frond 5.100855999999999 0.0 14.6413 Fertile Frond 5.778775666666666 0.0 17.1129 Young Stem with Root 8.3581 0.0 25.0743 Mature Stem with Root 19.871299999999998 0.0 58.1778 Root 5.068586666666667 0.0 14.582