condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.403835 0.148672 0.66779 Young Stem with Root 12.058200000000001 0.0 25.3331 Mature Stem with Root 2.0453666666666668 0.61013 4.89293 Root 1.1140746666666668 0.479054 1.48333