Because it matures earlier it is a more reliable seed producer. On the 

 other hand, biennial white produces higher yields of forage and green 

 manure and provides grazing during the second year. 



There is, in addition, an annual form of the white species and an 

 annual yellow species, but these are limited in their adaptation. 



The following varieties of yellow and white sweetclover are being 

 grown: 



Madrid is a biennial yellow noted for its early seedling vigor and its 

 tolerance of frost during the first year. It is slightly later than com- 

 mon yellow but more productive. It is adapted to all States in the 

 sweetclover area. 



Goldtop is a later -maturing biennial yellow that is adapted to Minne- 

 sota, Iowa, Missouri, Kansas, Nebraska, and parts of Washington. 

 Seed supply will be somewhat limited until 1959. 



Spanish is a biennial white that possesses good seedling vigor, 

 matures in midseason, and is a heavy seed producer. It is adapted to 

 the same area as Goldtop. 



Evergreen is a late -blooming biennial white that produces rank, 

 heavy growth and high yields. It is also adapted to the same area 

 as Goldtop. 



Hubam is an annual white sweetclover that provides winter pasture 

 in Florida, southern Texas, and in irrigated sections of Arizona, 

 New Mexico, and Texas. It is also grownas a summer green manure 

 crop in Idaho, Washington, and Oregon. 



Floranna is also an annual white adapted to the same area as Hubam 

 but which produces more winter growth in Florida and southern 

 Texas. 



Sour clover is a winter annual yellow sweetclover adapted to coastal 

 sections of States bordering the Gulf of Mexico and to southern New 

 Mexico, Arizona, and California. 



TREFOIL, BIRDSFOOT 



Birdsfoot trefoil is a temperate -climate legume that produces better 

 in the northern half of the United States than in the southern half. It grows 

 best on rich soils, but produces well on less fertile, poorly-drained clay 

 and silty clay loams, and it will also tolerate moderate quantities of alkali. 

 The plant serves as a hay, pasture, or conservation crop. Two types are 

 recognized: broadleafed and narrowleafed. 



Broadleafed Birdsfoot Trefoil 



The broadleafed varieties are adapted to New Jersey, Pennsylvania, 

 Ohio, Indiana, Illinois, Missouri, eastern Kansas and the area to the north, 

 and to Washington and Oregon. Fringe areas of adaptation include parts of 

 Delaware, Maryland, Virginia, North Carolina, Kentucky, Tennessee, 

 Missouri, Arkansas, Oklahoma, and California. Several varieties are im- 

 portant. 



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