It also can survive and spread on beggarweed and other weeds common to the Southeast.    From Wordnik.com.  [Southeast Farm Press RSS Feed] Reference

Cowpeas, soja beans, beggarweed, velvet beans, alfalfa and melilotus can all be grown in the pecan area.    From Wordnik.com.  [The Pecan and its Culture] Reference

On fairly good land this will be sufficient, but on poorer ground the land should be continued in cultivation another year, sowing it down in beggarweed, cowpeas, soja beans, or velvet beans.    From Wordnik.com.  [The Pecan and its Culture] Reference

Large amounts of nitrogen are gathered by leguminous crops; cowpeas, vetch, beggarweed, velvet beans, alfalfa and others may be planted to advantage, resulting in a great saving in fertilizer bills, and besides, adding the necessary vegetable matter and humus.    From Wordnik.com.  [The Pecan and its Culture] Reference