condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.53622 0.0 1.60866 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 5.095646666666666 1.652 11.9789 Root 0.067269 0.0 0.201807