condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 1.07581 0.0 3.22743 Mature Stem with Root 0.7566096666666666 0.0 1.73308 Root 5.572533333333333 0.0 16.7176