condition mean min max Sterile Frond 0.015042833333333333 0.0 0.0451285 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 3.2838399999999996 0.0 9.63628 Root 3.14486 0.0 9.43458