condition mean min max Sterile Frond 7.190528333333334 0.0 20.6993 Fertile Frond 18.503433333333334 0.0 55.5103 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 2.3516 0.0 4.6641 Root 0.577394 0.0 1.43385