condition mean min max Sterile Frond 0.10979866666666667 0.0 0.329396 Fertile Frond 0.12826200000000001 0.0 0.349453 Young Stem with Root 26.9911 0.0 58.9312 Mature Stem with Root 0.5218895666666666 0.0 1.53195 Root 0.0 0.0 0.0