condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.014861300000000001 0.0 0.0445839 Mature Stem with Root 3.1225400000000003 0.0 9.36762 Root 0.8964866666666667 0.0 2.68946