condition mean min max Sterile Frond 2.874836666666667 1.62829 4.84189 Fertile Frond 4.33191 1.42728 9.96266 Young Stem with Root 6.50896 1.06294 14.8675 Mature Stem with Root 4.173453333333333 2.99346 5.94196 Root 4.09938 1.41308 9.09124