condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.281546 0.0 0.844638 Young Stem with Root 2.791256666666667 0.0 4.92665 Mature Stem with Root 0.14814066666666667 0.0 0.444422 Root 0.0 0.0 0.0