Species of plant
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Trichostema setaceum is an herbaceous flowering plant. Commonly referred to as narrowleaf bluecurls, it is in the 
Lamiaceae (mint family). It grows in sandy soil, sandhills, and rocky uplands.
Description.
Narrowleaf bluecurls is an annual growing to . Stunning purple-blue flowers are borne from September to October. The stamens extend far beyond the petals, growing up to .
Conservation.
It is listed as endangered in Kentucky, New York, Ohio, and Pennsylvania. It is critically imperiled in Missouri.
References.
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