condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 9.941666666666666 0.0 29.825 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 25.284803999999998 0.0 75.193 Root 1.7968543333333333 0.0 4.7237