condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.43433000000000005 0.0 1.30299 Young Stem with Root 0.11821066666666667 0.0 0.354632 Mature Stem with Root 5.183906666666667 0.0 12.3666 Root 9.122462 0.382406 21.4743