condition mean min max Sterile Frond 5.100976666666667 0.0 13.8658 Fertile Frond 0.7038633333333334 0.0 2.11159 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