condition mean min max Sterile Frond 5.528930666666667 0.0 15.9317 Fertile Frond 4.25971 0.0 11.0665 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.038765 0.0 0.116295 Root 0.0 0.0 0.0