condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.0302243 0.0 0.0906729 Mature Stem with Root 6.167277 0.300031 14.7196 Root 0.725361 0.0 2.01785