condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.2582406666666667 0.0 0.774722 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 3.558116666666667 0.0 9.3018 Root 0.190439 0.0 0.330676