condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.0171077 0.0 0.0513231 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 2.97532 0.0 8.92596 Root 0.20519966666666667 0.0 0.615599