condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.17641266666666666 0.0 0.529238 Mature Stem with Root 4.83464 0.0 12.0776 Root 2.59302 0.0 4.48314