condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 1.4205733333333335 0.0 4.26172 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 4.40852 0.0 8.0099 Root 0.6454266666666667 0.0 1.93628