condition mean min max Sterile Frond 3.5882799999999997 0.0 9.0398 Fertile Frond 5.175198 0.214591 14.8666 Young Stem with Root 3.993051666666667 0.487523 10.7436 Mature Stem with Root 5.609377 0.713888 15.317 Root 4.958656666666667 0.0 13.4486