74 FLORA OF WASHINGTON AND VICINITY. 



tCrotalaria sagittalis, L. Eattle-box. 

 Last half of August. 



tLupinus perennis, L. Wild Lupine. 

 Last of April or first of May. 



Cytisus scoparius, Link. Scotch Broom. 



Roadside, near the northern corner of the District. Last of May or first of June. 



Medicago saliva, L. Lucerne. Alfalfa. 

 Sparingly escaped. 



Medicago liipulina, L. Black Medick. Nonesuch. 

 May. 



MeUlotus officinalis, Willd. Yellow Melilot. 



Streets of Washington. Rare. First half of June. 



tMelilotus alba, Lam. White Melilot. 

 June. 



tTrifolium arvense, L. Rabbit-foot Clover. 

 Latter part of June. 



t TrifoUum j»-atew8e, L. Red Clover. 

 June. 



tTrifolium reflexum, L. Buffalo-Clover. 

 High Island. End of May. Rare. 



t TrifoUum repeHS, L. White Clover. 

 May or June. 



Trifolium agrarium, L. Hop-Clover. 

 June to July. 



t Trifolium procumbens. L. Low Hop-Clover. 

 May to June. 



t Tephrosia Virginiana, Pers. Hoary Pea. Goat's Rue. 

 Second week in Juue. 



tRobinia Pseudacacia, L. Locust. 

 Third week in May. 



t Astragalus Canadensis, L. Milk-Vetch. i 



Potomac Shore, Va. ; also on High Island. End of June. 



t Stylosanthes elatior, Swartz. Pencil-Flower. 



August. 



tDesmodium nudiflorum, DC. Tick-Trefoil. 



Last of July. 



tDesmodium acuminatum, DC. 



August or first of September. 



Desmodium pauciflorum, DC. 



Rare. Last of August or first of September. 



