condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.224375 0.0 0.673125 Young Stem with Root 0.129568 0.0 0.388704 Mature Stem with Root 1.4135783333333334 0.750455 2.2242 Root 11.868615333333333 0.197446 30.9457