condition mean min max Sterile Frond 0.496502 0.104531 0.730701 Fertile Frond 1.0473143333333332 0.327977 1.97518 Young Stem with Root 7.931721333333334 0.0 23.399 Mature Stem with Root 1.7035673333333332 0.687942 3.34637 Root 6.002815999999999 0.426719 16.6452