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 0.7710056666666667 0.0 1.37644 Root 23.182787666666666 0.330063 57.2866