condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.6018100000000001 0.0 1.80543 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 4.167747666666667 0.551573 6.87155 Root 0.36906666666666665 0.0 1.1072