condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.06646293333333333 0.0 0.160461 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 2.732464 0.163592 4.36768 Root 0.059489900000000005 0.0 0.139051