condition mean min max Sterile Frond 0.9671533333333334 0.0 1.85596 Fertile Frond 16.60827 0.0 44.2128 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.10857733333333335 0.0 0.325732 Root 0.0 0.0 0.0