condition mean min max Sterile Frond 3.7764433333333334 0.0 9.2072 Fertile Frond 1.3166833333333334 0.0 3.95005 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