condition mean min max Sterile Frond 0.995076 0.0 2.2011 Fertile Frond 2.9882 0.0 6.49116 Young Stem with Root 8.414522666666667 0.229808 23.1992 Mature Stem with Root 2.109435 0.977195 3.65226 Root 0.6436943333333334 0.0 1.35904