condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 7.398333333333333 0.0 22.195 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.3260363333333334 0.0 0.670205 Root 0.9484400000000001 0.0 2.84532