condition mean min max Sterile Frond 30.8435 26.7812 37.0655 Fertile Frond 33.868966666666665 30.8939 35.3704 Young Stem with Root 33.99176666666667 32.5842 35.2961 Mature Stem with Root 26.6259 23.3621 29.926 Root 25.3291 21.2086 29.0097