condition mean min max Sterile Frond 2.48022 0.0 6.21109 Fertile Frond 1.9807583333333332 0.690495 4.16313 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.12080999999999999 0.0 0.36243 Root 0.0 0.0 0.0