condition mean min max Sterile Frond 0.14005833333333334 0.0 0.420175 Fertile Frond 2.110666333333333 0.0 5.90968 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