condition mean min max Sterile Frond 5.26796 0.0 10.1265 Fertile Frond 5.1677839 0.0432017 10.6247 Young Stem with Root 2.54413 0.0 4.19684 Mature Stem with Root 4.45823 0.0 9.90365 Root 4.28357 0.0 6.80122