Coronilla varia* /Pea Family
(INN) Rank 2
Crown vetch is planted along roadsides to help control erosion, however it has the tendency to spread to other areas. It is in the Pea Family. I found these in Oak Ridge in late May. Crown Vetch contains a poison called nitroglycoside, it is dangerous for horses to eat large amounts of it.
Where seen:Oak Ridge, Great Smoky Mountains NP, along highways in East Tennessee