condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 2.2399733333333334 0.0 5.37952 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.62996 0.0 1.88988 Root 0.0 0.0 0.0