condition mean min max Sterile Frond 1.7598989999999999 0.0 5.04425 Fertile Frond 0.5294666666666666 0.0 1.5884 Young Stem with Root 0.4088 0.0 1.2264 Mature Stem with Root 1.9907000000000001 0.0 3.93371 Root 4.056552333333333 0.984107 7.45705