condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.08390933333333334 0.0 0.251728 Mature Stem with Root 0.105836 0.0 0.317508 Root 2.4468033333333334 0.0 7.34041