condition mean min max Sterile Frond 2.8657433333333335 0.0 6.98663 Fertile Frond 0.4270833333333333 0.0 1.28125 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.0 0.0 0.0 Root 0.0 0.0 0.0