condition mean min max Sterile Frond 3.8915666666666664 0.0 11.6747 Fertile Frond 0.14477633333333334 0.0 0.434329 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