condition mean min max Sterile Frond 3.1276272333333335 0.0 9.29598 Fertile Frond 0.096905 0.0 0.290715 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