condition mean min max Sterile Frond 0.28474299999999997 0.179022 0.478548 Fertile Frond 0.43095300000000003 0.182588 0.568477 Young Stem with Root 6.793500000000001 0.0 20.3805 Mature Stem with Root 1.2250863333333335 0.362554 2.53596 Root 5.262624566666666 0.0786737 13.6063