condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 1.0011316666666665 0.0 2.81633 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 4.261571 0.744853 6.26051 Root 0.8028056666666666 0.115228 1.96542