condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.31751266666666667 0.0 0.952538 Young Stem with Root 3.15723 0.0 7.7474 Mature Stem with Root 0.16773133333333334 0.0 0.503194 Root 0.143515 0.0 0.430545