condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 1.77991 0.0 5.33973 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 6.1617923333333335 0.887447 9.64005 Root 1.2848835666666667 0.0364377 3.59173