condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.086846 0.0246355 0.145865 Young Stem with Root 2.1532726666666666 0.279328 3.21727 Mature Stem with Root 0.760494 0.515186 1.16523 Root 0.05652086666666667 0.0213715 0.119041