condition mean min max Sterile Frond 3.006150666666666 0.0 8.28146 Fertile Frond 11.184503333333334 2.1773 28.448 Young Stem with Root 7.263579999999999 0.0 19.6697 Mature Stem with Root 5.41203 0.0 14.4972 Root 6.018623 0.327179 12.8821