condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 7.999300000000001 0.0 23.9979 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 3.8414400000000004 0.0 9.41566 Root 0.6171663333333334 0.0 1.32644