condition mean min max Sterile Frond 0.13008696666666666 0.0 0.306721 Fertile Frond 1.695756 0.169878 3.86597 Young Stem with Root 0.24544000000000002 0.0 0.555482 Mature Stem with Root 7.706370000000001 1.81406 16.2938 Root 14.074413333333334 1.83404 24.5517