condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.036846 0.0 0.110538 Young Stem with Root 0.233501 0.0 0.700503 Mature Stem with Root 0.45454466666666665 0.0 0.966365 Root 5.488183 0.0 16.2785