condition mean min max Sterile Frond 0.22720133333333334 0.0 0.365965 Fertile Frond 2.24676 0.0 6.16253 Young Stem with Root 2.0974500000000003 0.0 4.38239 Mature Stem with Root 1.3577646666666667 0.162444 2.39271 Root 0.6467999999999999 0.0 1.9404