condition mean min max Sterile Frond 2.0241833333333332 0.0 6.07255 Fertile Frond 1.0327998333333333 0.0 3.06269 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