condition mean min max Sterile Frond 1.7864360000000001 0.407678 2.82484 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.2582466666666667 0.0 0.77474 Mature Stem with Root 6.750570000000001 0.0 17.6337 Root 2.0620866666666666 0.0 6.18626