FAMILIAR FARM ENEMIES 
271 
has not been thoroughly cultivated. Cockleburs grow on 
almost all kinds of soil. The burs are very well adapted 
to sticking to animals, causing much inconvenience. 
Ragweeds are found everywhere, and they have such a 
disagreeable odor and taste that animals seldom eat 
them. All of these weeds and a multitude of others may 
be found in every community. 
Dodder.—-Certain weeds obtain their food directly 
from the plant which we are trying to grow. They twine 
Fig. 191.— A. Crab grass. B. Cocklebur. C. Ragweed. D. Johnson grass. 
E. Pigweed. 
around the stems of the plant, fastening themselves with 
little suckers and secure their food from the host plant. 
Dodder or “love vine” is the most common plant of this 
type. It is usually found on peas, beans and other 
leguminous crops. You may recognize it as a yellow, 
threadlike growth about the stems. Large amounts pro¬ 
duce orange colored patches in fields. 
Fungus.—Fungus is the name applied to a great group 
of low plant forms which do not have the green coloring 
