condition mean min max Sterile Frond 2.9817733333333334 0.0 8.94532 Fertile Frond 2.063833333333333 0.0 6.1915 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