condition mean min max Sterile Frond 2.065854 0.334484 5.42129 Fertile Frond 0.476624 0.125448 1.17729 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.04735866666666667 0.0 0.142076 Root 0.0 0.0 0.0