


_ White Sweet or Bokhara Clover (Meli- 
\ lotus Alba). 20 pounds per acre. A 
Biennial having a strong tap root, pro- 
duces numerous leafy stems, growing from 
4 to 6 feet in height when firmly estab- 
lished. Grows readily on practically all 
types of soils. Endures poorly drained 
soils better than Alsike, used mainly as a 
pasture plant and for green manure. 
Yellow Sweet Clover (Melilotus Offici- 
nalis). 20 pounds per acre. A biennial 
having the same habits of growth as the 
White Sweet, requiring the same soil and 
climatic conditions. Stems are less leafy 
and smaller in size. The plant does not 
grow quite as tall and is about two weeks 
earlier. 
Yellow Sweet Clover Annual (Melilotus 
Indica). 20 pounds per acre. Known as 
Yellow Blossom sour clover. Not recom- 
mended for forage or hay, used almost 
entirely for cover crop. Soil require- 
ments same as other sweet clovers. 
Subterranean Clover (Trifolium Subterra- 
nean). 12 to 15 pounds per acre. The 
name of this clover is derived from its 
habit of pushing the seed head into the 
soil sometimes to a depth of two inches, 
where the seeds mature and germinate 
when favorable conditions develop. 
Subterranean Clover is an annual that 
starts growth in the fall or late winter. 
The stems are prostrate, assuming the form 
of runners. The leaf is similar to that of 
other clovers. The flower heads usually 
bear three small white to pinkish white 
flowers in a cluster at the tip of the stalk. 
A single seed develops from each flower. 
The mature seed is dark purple, about 
double the size of a crimson clover seed. 
Under Pacific Northwest conditions this 
clover probably requires for survival, at 
least 20 inches of rainfall during the fall, 
winter and spring, and the temperatures 
remaining above 10 degrees Fahrenheit. 
The plant does not appear to be tolerant 
of poor drainage. It will thrive on soils 
that are quite acid. 
This plant starts growth much earlier in 
the spring than other legumes. 
White Dutch Clover (Trifolium Repens). 
8 pounds per acre. A long-lived but 
shallow-rooted perennial. The stems 
creep on the surface of the ground and 
root abundantly. On this account the 
growing point is seldom injured by mow- 
p/ 
ing or grazing. Grows in practically all 
types of soil provided moisture is abun- 
dant, thriving best in loams and clay soils. 
White Clover is considered to be one of 
the most important pasture plants, gen- 
erally used in pasture mixtures and is also 
used to a large extent in lawn grass 
mixtures. 
COVER CROP SEED 
Austrian Winter Field Peas. A true win- 
ter variety. Plants resulting from fall seed- 
ings pass through a definite period of 
winter dormancy before growth begins 
in the spring. The plants are viny, 
generally similar to other varieties of field 
peas, under average conditions attain a 
length of 3 to 4 feet. The blooms are 
purple. The peas are very hardy, zero 
temperatures do little damage unless 
freezing and thawing periods are severe. 
They are adapted to well drained clay 
and sandy loams. The Austrian pea is 
used for all types of forage such as hay, 
silage, soiling and pasture. 
Canadian Field Peas. Quite similar to 
the Austrian Winter Field Pea. The stems 
and leaves are somewhat larger and the 
blooms are white. The variety is not win- 
ter hardy, being adapted only to moderate 
temperatures. They do best on loams or 
clay loams but will succeed on most types 
of soil if well drained. 
The Canadian Field Pea is used for prac- 
tically the same purposes as the Austrian 
in general farming. Both varieties are 
usually sown with a small grain crop. 
Vetches make excellent feed, either 
green or as hay, and are also exceedingly 
useful as cover and green manure crops. 
They are usually seeded with grain, oats 
being the favorite for the reason separa- 
tion is easily made when harvesting vetch 
for a seed crop. 
Common Vetch. The most important an- 
nual legume grown in Oregon, used ex- 
tensively as a green feed crop for spring 
and summer, also makes an excellent 
manure and cover crop. Vetch is best 
suited to a moist climate free from ex- 
tremes of heat or cold during the growing 
season. Is adapted to heavy well drained 
soils. The stems are slender growing 
from 3 to 5 feet or more in length, with 
about 7 pairs of leaflets and a terminal 
tendril. The flowers are violet purple 
rarely white and are borne in pairs on a 
very short stalk. 
