condition mean min max Sterile Frond 0.046003999999999996 0.0 0.138012 Fertile Frond 0.045723999999999994 0.0 0.137172 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 5.522400066666666 0.0 16.5021 Root 0.17993233333333333 0.0 0.36256