condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.263716 0.0870099 0.611992 Young Stem with Root 5.2666541 0.0 15.7157 Mature Stem with Root 2.7122413333333335 0.417254 4.98526 Root 11.92673 1.92239 21.9973