condition mean min max Sterile Frond 0.6277433333333333 0.0 1.88323 Fertile Frond 4.127812666666666 0.0 11.4309 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 0.87267 0.0 2.61801 Root 0.0 0.0 0.0