condition mean min max Sterile Frond 0.07244300000000001 0.0 0.151958 Fertile Frond 0.07041 0.0 0.21123 Young Stem with Root 1.7634966666666667 0.0 5.29049 Mature Stem with Root 0.0 0.0 0.0 Root 5.982141299999999 0.0 17.9043