condition mean min max Sterile Frond 19.490733333333335 0.0 58.4722 Fertile Frond 12.7012 0.0 38.1036 Young Stem with Root 16.0961 0.0 48.2883 Mature Stem with Root 102.859 0.0 308.577 Root 64.253 0.0 192.759