condition mean min max Sterile Frond 0.042987 0.0 0.128961 Fertile Frond 1.4260516666666667 0.0 4.12138 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 3.8413687666666667 0.0697763 6.78381 Root 1.0649466 0.0774758 2.66114