condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.12933 0.0 0.38799 Young Stem with Root 18.509768333333334 0.170005 28.8948 Mature Stem with Root 0.5727366666666667 0.0 1.71821 Root 0.0 0.0 0.0