condition mean min max Sterile Frond 8.476454666666665 0.424974 23.5541 Fertile Frond 8.367963333333332 0.0 22.6242 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.313255 0.149063 0.435395 Root 1.073958 0.0 2.46365