condition mean min max Sterile Frond 2.3225766666666665 0.0 4.50565 Fertile Frond 0.9684133333333333 0.0 2.90524 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.0 0.0 0.0 Root 0.0 0.0 0.0