condition mean min max Sterile Frond 2.1188196666666665 0.425359 4.70807 Fertile Frond 1.973123 0.476269 4.01424 Young Stem with Root 0.913346 0.689718 1.16211 Mature Stem with Root 1.172267 0.395597 2.61801 Root 0.9701633333333334 0.0 1.67155