condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 10.2606 0.0 30.7818 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.130578 0.0 0.391734 Root 0.8885933333333333 0.0 1.61796