condition mean min max Sterile Frond 0.0 0.0 0.0 Fertile Frond 0.163271 0.0 0.489813 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 5.824427 0.0 17.3259 Root 0.9496049999999999 0.0 2.56065