condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 3.2231 0.0 9.6693 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.0 0.0 0.0 Root 0.9676606666666666 0.0 2.63284