condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 12.482487333333335 0.0 37.0658 Young Stem with Root 0.057888999999999996 0.0 0.173667 Mature Stem with Root 0.19624233333333332 0.0 0.588727 Root 2.92474 1.16845 5.22501