condition mean min max Sterile Frond 4.452493333333333 1.93228 8.43469 Fertile Frond 2.482403333333333 1.41925 4.12812 Young Stem with Root 0.296896 0.0 0.688976 Mature Stem with Root 1.707346 0.463208 3.16472 Root 0.0 0.0 0.0