condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.322121 0.0 0.966363 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 3.78348 0.589387 10.0139 Root 1.5531899999999998 0.0 2.832