condition mean min max Sterile Frond 2.6061 0.0 7.8183 Fertile Frond 5.4391 0.0 16.3173 Young Stem with Root 3.343 0.0 10.029 Mature Stem with Root 8.482833333333334 0.0 25.4485 Root 0.43984 0.0 1.31952