condition mean min max Sterile Frond 13.758700000000001 11.1233 18.6279 Fertile Frond 12.53949 9.35147 15.5915 Young Stem with Root 11.934750000000001 7.45876 20.4063 Mature Stem with Root 19.735103333333335 6.53791 27.1218 Root 4.080376666666666 3.58886 4.34765