condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.014757933333333334 0.0 0.0442738 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 3.252471 0.0 9.1655 Root 2.91393 0.0 8.74179