condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.44571999999999995 0.0 1.33716 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 5.732966666666666 0.0 17.1989 Root 1.9796466666666666 0.0 5.93894