condition mean min max Sterile Frond 2.3300966666666665 0.0 6.2245 Fertile Frond 0.44680000000000003 0.0 1.3404 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.0 0.0 0.0 Root 0.0 0.0 0.0