Thermopsis villosa (Walter) Fernald & B.G.Schub.
Family: Fabaceae
Aaron's rod,  more...
Thermopsis villosa image
from USDA Plants website  
Etymology: Thermopsis: from the Greek thermos for lupine and opsis, "like," bearing yellow lupine-like flower heads
Plants: erect, perennial forb
Flowers: yellow
Conservation Status: Introduced - rarely escaped
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