condition mean min max Sterile Frond 0.2716753333333333 0.0 0.815026 Fertile Frond 2.9007733333333334 0.0 8.70232 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.33654999999999996 0.0 1.00965 Root 0.0 0.0 0.0