condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.18499033333333334 0.0 0.554971 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 5.914701 0.129527 16.9767 Root 1.8791 0.0 4.57003