condition mean min max Sterile Frond 0.231451 0.0 0.500259 Fertile Frond 8.902113333333332 0.0 25.3223 Young Stem with Root 0.0 0.0 0.0 Mature Stem with Root 1.4816333333333334 0.0 3.39319 Root 0.061937 0.0 0.185811