condition mean min max Sterile Frond 0.09300199999999999 0.0 0.279006 Fertile Frond 2.8849133333333334 0.0 6.67972 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.0 0.0 0.0 Root 0.0 0.0 0.0