36 
Phaseolus perennis. Wild kidney bean. 
A species closely | a to the garden bean, widely dist over the eastern and 
southern United States, and as far west as the Mississippi River. It grows in 
woodland copses and along the banks of streams, and wherever found is eaten 
greedily by stock, It should be given a trial in 5 
1 
Pisum arvense. Gray winter pea; Canada field pea; Field pea. 
The common field pea is a native of Italy, and has been in cultivation for a good 
any hundred years. It is grown chiefly for its seeds, which are used both 
as an article of diet and for odas cattle. Itis one of the best soiling crops 
for milch cows, and is largely used in the Northern States and Canada and as 
far west as the Dakotas for this purpose, and for green manure. The seed is 
FIG. 36.—Garden pea (Pisum sativum). FIG. 37.—Knotweed (Polygonum aviculare). 
sown broadcast and harrowed in. It is planted in early spring, and is ready to 
cut in May or June. For soiling, the fodder is sweet, palatable, and very nutri- 
tious. It also makes an excellent quality of ensilage. It grows best on light 
calcareous loams and prodyces heavy crops on rich land. 
Pisum sativum. Garden pea. (Fig. 36.) 
The garden pea, so generally cultivated as an early spring vegetable, i is equally val- 
uable as a fodder crop, but it requires richer land and is more quickly affected 
by drought than the field variety. Some botanists regard this as a cultural 
variety of the field pea. 
Pithecolobium brevifolium. Huajillo. 
_A spiny apres shrub, aes ion “ sus lower Rio pong According to Dr. 
Havard, th by sheep and poet i in the winter 
time. 7 
