condition mean min max Sterile Frond 0.07506433333333333 0.0 0.225193 Fertile Frond 0.16771499999999998 0.0 0.503145 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 2.5888358333333334 0.0 7.71292 Root 0.122488 0.0 0.367464