condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.015886566666666668 0.0 0.0476597 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.03805833333333333 0.0 0.114175 Root 3.2415078 0.0422436 9.63097