condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 2.2719533333333333 0.0 6.81586 Mature Stem with Root 0.18683133333333335 0.0 0.361424 Root 1.01975 0.0 3.05925