condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 1.077598 0.0 2.52179 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 3.6907913333333333 0.361424 7.96281 Root 6.914856666666666 2.36172 14.693