condition mean min max Sterile Frond 2.43951 0.0 7.31853 Fertile Frond 1.1345260000000001 0.0 3.0918 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.0 0.0 0.0 Root 0.0 0.0 0.0