condition mean min max Sterile Frond 0.39298666666666665 0.0 1.17896 Fertile Frond 2.6917186666666666 0.0 7.79301 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 3.5883599999999998 0.0 6.63946 Root 0.0 0.0 0.0