condition mean min max Sterile Frond 0.19409433333333334 0.0 0.582283 Fertile Frond 0.194773 0.0 0.3866 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 2.80457 0.0 8.41371 Root 0.061937 0.0 0.185811