condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.8578423333333333 0.0 2.16315 Young Stem with Root 2.28551 0.0 6.85653 Mature Stem with Root 0.0 0.0 0.0 Root 1.6801766666666669 0.0 5.04053