condition mean min max Sterile Frond 0.632919 0.0 1.7927 Fertile Frond 2.8140783333333332 0.0 8.07939 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.8036789999999999 0.0 2.29952 Root 0.42552399999999996 0.0 0.763848