328 



GRASSES OF IOWA. 



FiK 151. A. group of meadow grasses Fowl meadow erass. (Poa aerotina) to the 

 right, a very productive grass, common in low grounds. P nemoralis a g. od mouDtain 

 grass, rarely occurring In this state /'. annua, au Introduced grass In lawns. P. Chap- 

 manniana ojcurs In southeastern Icwa. 



its product is inconsiderable, compared to manyotler grasses. 

 Its strong creeping roots exhaust the soil very much; after 

 mid-summer the herbage is slow in growth after being cropped. 

 It is the property of all creeping roots to scourge the soil, and 

 when plants with fibrous roots can be substituted in place of 

 these, with an equal prospect of advantage, in regard to early 

 growth, produce and nutritive qualities, it will be found to 

 repay the labor with interest. " It appears first to have teen 

 cultivated about the middle of the last century under the name 

 of Birdgrass. It has long been known as a valuable grass in 



