condition mean min max Sterile Frond 3.3092433333333333 1.88358 5.57522 Fertile Frond 1.165466 0.829618 1.34311 Young Stem with Root 0.514969 0.0 1.34805 Mature Stem with Root 1.46539 0.0 2.42931 Root 0.082009 0.0 0.246027