condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 1.9413799999999999 0.0 5.82414 Young Stem with Root 0.9735900000000001 0.0 2.92077 Mature Stem with Root 2.4385133333333333 2.03839 3.09077 Root 13.18477 0.0 33.8957