condition mean min max Sterile Frond 3.4871529999999997 0.0 9.76976 Fertile Frond 0.5550533333333333 0.0 1.66516 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.0 0.0 0.0 Root 0.8074766666666666 0.0 2.42243