condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 1.0786369999999998 0.0 2.77993 Young Stem with Root 0.327142 0.0 0.981426 Mature Stem with Root 13.655776666666666 1.59394 36.6687 Root 1.00253 0.0 3.00759