condition mean min max Sterile Frond 5.1606 0.0 15.4818 Fertile Frond 0.7501512333333333 0.0 2.22798 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.9293936666666666 0.0 2.76075 Root 0.0414725 0.0 0.0996769