condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 2.7815603333333336 0.817381 6.45924 Young Stem with Root 18.433869833333333 0.0590095 31.9869 Mature Stem with Root 0.49144000000000004 0.0 1.35478 Root 1.521066 0.731654 2.89633