condition mean min max Sterile Frond 4.215026666666667 3.61601 5.12191 Fertile Frond 5.21589 3.21899 7.89992 Young Stem with Root 5.22215 3.68357 7.53662 Mature Stem with Root 7.1873499999999995 4.17465 9.83944 Root 4.462226666666667 3.48849 6.22957