condition mean min max Sterile Frond 3.3531953333333333 0.661783 8.69365 Fertile Frond 3.436218 0.389657 9.0959 Young Stem with Root 3.629069 0.363817 7.38129 Mature Stem with Root 5.251979666666667 0.325259 14.7117 Root 1.85638 0.0 3.08572