condition mean min max Sterile Frond 1.6874233333333333 1.60866 1.79989 Fertile Frond 2.41027 1.88932 3.14468 Young Stem with Root 1.3863766666666666 1.00955 1.7276 Mature Stem with Root 1.398605 0.912085 1.78709 Root 0.607968 0.22463 0.911277