condition mean min max Sterile Frond 0.15254399999999999 0.0 0.457632 Fertile Frond 3.8498566666666667 0.0 9.2425 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 1.8434033333333335 0.0 3.41326 Root 0.0 0.0 0.0