condition mean min max Sterile Frond 21.57846333333333 5.25969 46.2118 Fertile Frond 9.657666666666668 4.42337 17.0658 Young Stem with Root 13.12909 6.67027 17.4379 Mature Stem with Root 7.541320000000001 1.03361 18.7205 Root 1.317324 0.360122 2.9711