National Geographic : 1921 Jun
THE NATIONAL GEOGRAPHIC MAGAZINE The Illustration Magnifies 50 Diameters RYE-GRASS (Lolium perenne) Rye-grass is a perennial with flowers occurring 8 to 15 in spikelets situated alternately on the rachis, or axis. It grows in fields and lots and is commonly considered a weed. Its blooming period is in June. Found mostly in the eastern part of the United States, it was introduced from Europe, where it occurs in numerous varieties.