condition mean min max Sterile Frond 0.13763133333333333 0.0 0.412894 Fertile Frond 2.65767 0.0 7.97301 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.0 0.0 0.0 Root 0.0 0.0 0.0