condition mean min max Sterile Frond 3.117315 0.915265 5.13733 Fertile Frond 3.721173333333333 1.46245 7.394 Young Stem with Root 5.817666666666667 1.72201 12.7233 Mature Stem with Root 7.026574 0.383642 11.4315 Root 0.0 0.0 0.0