condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.9462366666666666 0.0 2.83871 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 5.02531 1.84389 7.11516 Root 1.1363587666666668 0.0 3.31687