condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 1.8847266666666667 0.0 5.65418 Young Stem with Root 0.021960900000000002 0.0 0.0658827 Mature Stem with Root 0.03644753333333334 0.0167699 0.071191 Root 0.1771802 0.0385965 0.431014