condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 6.742126633333333 0.0924799 16.8749 Root 1.3877266666666668 0.0 2.40919