condition mean min max Sterile Frond 7.231063333333333 1.19682 17.7764 Fertile Frond 5.61745 0.0 15.6871 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.0 0.0 0.0 Root 0.0 0.0 0.0