condition mean min max Sterile Frond 16.031133333333333 0.0 48.0934 Fertile Frond 16.176959333333336 0.0 48.3293 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.060724 0.0 0.182172 Root 0.0 0.0 0.0