condition mean min max Sterile Frond 0.09069566666666667 0.0 0.272087 Fertile Frond 2.80452 0.0 8.41356 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 2.01632 0.0 4.89094 Root 0.0 0.0 0.0