condition mean min max Sterile Frond 3.9441 3.25864 5.02659 Fertile Frond 5.125703333333333 4.0123 6.93082 Young Stem with Root 7.429343333333334 2.08863 11.6072 Mature Stem with Root 3.23594 1.08466 5.77938 Root 3.8697 2.80719 5.95799