condition mean min max Sterile Frond 12.44329 5.39079 22.9976 Fertile Frond 11.310143333333333 5.36458 21.2593 Young Stem with Root 12.10448 7.57664 17.0302 Mature Stem with Root 21.592466666666667 8.9331 29.9448 Root 15.855030000000001 6.11063 32.7991