condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 1.6624466666666666 0.0 4.98734 Root 20.578 4.17712 52.2826