condition mean min max Sterile Frond 4.2132266666666665 3.3142 5.72516 Fertile Frond 4.39632 3.17297 5.50431 Young Stem with Root 4.44772 4.24413 4.66526 Mature Stem with Root 4.41042 3.9781 4.74026 Root 4.816403333333334 3.44482 6.48473