condition mean min max Sterile Frond 1.0608813333333333 0.0 2.4512 Fertile Frond 5.602063333333334 2.05188 7.78735 Young Stem with Root 1.874051 0.0 4.95194 Mature Stem with Root 1.603222 0.0 4.43415 Root 11.61053 2.96769 21.2422