condition mean min max Sterile Frond 0.027097766666666665 0.0 0.0812933 Fertile Frond 0.0 0.0 0.0 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.25972033333333333 0.0 0.779161 Root 2.7468513000000003 0.0 8.156