LEGUMINOUS PLANTS. 415 



well prepared land. Otherwise those weeds which everywhere follow 

 in the footsteps of the settler, will soon take their place, multiplying 

 with a prodigious rapidity. The Canada and Common thistle, Amar- 

 anths, Door- weeds, Knot-grass, Rag and May weeds and Thorn apples 

 threaten to become the victors in the battle for existence. 



List of leguminous plants known to grow spontaneously in Tentfessee : 



Crotalaria sagittalis. L. Rattlebox, annual July September. 



Lupinus perennis, L. Lupine, perennial. April, May. 



Mt'Mlotus alba, Lam. Sweet clover. Perennial. May, June. 



Trifolium pratense, L Red clover. Perennial. May. 



Trifolium arvense, L. Rabbit-foot clover. Annual. May. 



Trifolium refiexum, L Buffalo clover. Biennial. May. 



Trifolium repens, L. White clover. Perennial. May. 



Trifolium Carolinianum, Michx. Carolina clover. Perennial. 



Medicago lupulina, L. Black Medic. Annual. May. 



Psoralea mclilotoides, L. Psoralea, perennial. June. 



Psori 7 6i subaewili*, Torr & Gray. Perennial. April. 



Petalostemon foliosus, Gray. Leafy prairie clover. Perennial. 

 May, June. 



Petalostemon decumbens, Gray. Low prairie clover. Perennial. 

 May, June. 



Petalostemon corymbosus, Michx, Silky prairie clover. Perennial. 

 June, July, 



Amorpha fruticosa, L. Lead plant. June 



Itobinia pseudacacia, L. Common locust. May. 



Robinia viscosa, Vent. Clammy locust, shrub. . May 



Robinia hispida, L. Rose acacea. Shrub May. 



Wistaria frutescens, D. C. Wistaria climbing shrub. May. 



Tephrosia spicata, Torr & Gray. June, July. 



Astragalus Tennexsiensis, Gray. Tennessee milk vetch. Peren- 

 nial. April. 



Astragalus Canadensis, L. Canada milk vetch . Perennial June. 

 Vicia m Grant ha, Nutt. Small flowered vetch. Biennial. March. 



ViOii Carolina, Walt. Carolina vetch. Biennial. April. 



Vicia Americana, Gray. American vetch Perennial. April. 



Stylosanthes elatior, Swartz. Pencil flower. Perennial. June, 

 August. 



Lespedeza repent. Torr & Gray. Creeping bash clover. Peren- 

 nial. June, September. 



Lespedeza violacea, Pers. Bush clover. Perennial. June, August, 

 Lespedeza Stnvei, Nutt Downy bush clover. Perennial. August. 



