condition mean min max Sterile Frond 4.313053333333333 0.0 8.24401 Fertile Frond 1.64226 0.0 3.39132 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.2894836666666667 0.0 0.661205 Root 2.71222 0.0 6.01793