condition mean min max Sterile Frond 4.863086666666667 0.0 10.1316 Fertile Frond 1.2594473333333334 0.0 3.40247 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