condition mean min max Sterile Frond 0.050917 0.0 0.152751 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 1.1251654333333334 0.0 3.32541 Root 2.6758533333333334 0.0 7.71372