condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.23642133333333334 0.0 0.709264 Mature Stem with Root 3.358833333333333 0.0 10.0765 Root 18.37982 0.0 51.9905