condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.17570233333333332 0.0 0.527107 Young Stem with Root 0.128553 0.0 0.255025 Mature Stem with Root 2.187215 0.613095 3.87312 Root 7.412931333333334 0.544324 12.5188