condition mean min max Sterile Frond 6.456184333333334 0.0 19.2622 Fertile Frond 2.0394 0.0 6.1182 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.11925000000000001 0.0 0.35775 Root 0.0 0.0 0.0