condition mean min max Sterile Frond 2.026186666666667 0.0 6.07856 Fertile Frond 15.70539 0.0 44.1759 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.55238 0.0 1.65714 Root 1.04875 0.0 3.14625