condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.06719266666666666 0.0 0.201578 Young Stem with Root 5.398993333333333 0.0 12.5462 Mature Stem with Root 0.678652 0.0 1.82172 Root 0.536257 0.347688 0.756741