condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 2.66086 0.0 5.4041 Young Stem with Root 0.7634433333333334 0.0 2.29033 Mature Stem with Root 7.05002 0.0 13.5031 Root 4.488853333333333 2.55745 6.02537