condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 9.376001666666667 0.117995 23.6935 Root 0.9050766666666666 0.0 1.40916