condition mean min max Sterile Frond 4.024962 0.650816 8.02281 Fertile Frond 3.4190799999999997 0.0 7.7006 Young Stem with Root 4.22036 1.69385 7.21519 Mature Stem with Root 3.0931766666666665 1.52406 5.74921 Root 3.95619 2.5672 5.65367