condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 5.0386999999999995 0.0 15.1161 Mature Stem with Root 0.2857133333333333 0.0 0.449821 Root 3.0126866666666667 0.0 9.03806