condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.43885700000000005 0.0 1.15338 Young Stem with Root 4.520803333333333 0.0 7.85946 Mature Stem with Root 0.024225399999999998 0.0 0.0726762 Root 0.0 0.0 0.0