Fig. 280; Carex viridula: a, habit, showing the densely caespitose culms and leaves 

 and the long bracts subtending the inflorescences. X -f,; h, ligule. X 6; c. perigynium, 

 X 12; d, achene (cross section), X 12; e. pistillate flower with perigynium removed, 

 X 12; f, scale, X 12. (From Mason, Fig. 114.) 



