condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.2735843333333333 0.0 0.820753 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 3.4479333333333333 0.0 10.3438 Root 0.0 0.0 0.0