condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 2.7126 0.0 8.1378 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.16243733333333335 0.0 0.487312 Root 0.8690033333333332 0.0 2.60701