condition mean min max Sterile Frond 7.055476333333334 0.834379 19.0649 Fertile Frond 14.708715333333332 0.147496 41.0761 Young Stem with Root 4.6459368 0.0 13.8697 Mature Stem with Root 0.634383 0.244436 0.918241 Root 13.504959333333334 0.0 40.3363