condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 2.2566363333333332 0.0 6.57219 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 1.39893 0.0 2.31377 Root 1.1536469999999999 0.0 3.27513