condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 4.964433333333333 0.0 14.8933 Mature Stem with Root 0.0 0.0 0.0 Root 18.113506666666666 0.0 53.5463