condition mean min max Sterile Frond 1.3852966666666666 0.0 3.86971 Fertile Frond 5.0441 0.0 15.1323 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.161755 0.0 0.485265 Root 0.167497 0.0 0.502491