condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.130832 0.0 0.392496 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 3.119596666666667 1.71269 4.84096 Root 0.637423 0.0 1.57655