condition mean min max Sterile Frond 6.599786666666667 2.73829 13.3925 Fertile Frond 3.6865229999999998 0.966499 8.50194 Young Stem with Root 1.029646 0.0 2.22107 Mature Stem with Root 1.3916996666666666 0.0 3.99651 Root 0.0 0.0 0.0