condition mean min max Sterile Frond 1.9868343333333334 0.0 5.33974 Fertile Frond 0.10364266666666666 0.0 0.310928 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