condition mean min max Sterile Frond 0.009982433333333334 0.0 0.0299473 Fertile Frond 6.39535 0.240128 17.9924 Young Stem with Root 0.40021433333333334 0.193865 0.525274 Mature Stem with Root 0.0138333 0.0 0.0414999 Root 0.0 0.0 0.0