condition mean min max Sterile Frond 2.9763113333333333 0.544174 7.00452 Fertile Frond 6.656826 0.275208 15.8956 Young Stem with Root 3.10106 0.0 9.30318 Mature Stem with Root 0.0 0.0 0.0 Root 7.347243333333333 0.0 20.3034