condition mean min max Sterile Frond 18.536066666666667 17.2285 20.8264 Fertile Frond 22.8959 16.9915 28.2061 Young Stem with Root 28.8229 17.3165 37.9815 Mature Stem with Root 15.229800000000001 12.7311 17.2692 Root 11.62018 9.00184 15.2237