condition mean min max Sterile Frond 10.56863 0.0 30.4087 Fertile Frond 7.390319333333333 0.0 21.3023 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.24094933333333335 0.0 0.722848 Root 0.0 0.0 0.0