condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 7.9846786666666665 0.0 23.717 Mature Stem with Root 0.03310576666666667 0.0 0.0993173 Root 0.0 0.0 0.0