condition mean min max Sterile Frond 6.842009999999999 5.29522 8.57753 Fertile Frond 6.19123 4.53928 7.67978 Young Stem with Root 5.300063333333333 3.38488 7.44504 Mature Stem with Root 3.26474 2.59151 4.56733 Root 2.0133046666666665 0.842554 3.54833