condition mean min max Sterile Frond 2.0376176666666668 0.590833 3.94148 Fertile Frond 2.37064 1.70598 3.19403 Young Stem with Root 0.5684918 0.0 1.67962 Mature Stem with Root 0.7954673333333333 0.203282 1.10022 Root 1.327653 0.110217 3.44915