Trichostema setaceum

Trichostema setaceum is an herbaceous flowering plant. Commonly referred to as narrowleaf bluecurls, it is in the Lamiaceae (mint family).^[2] It grows in sandy soil, sandhills, and rocky uplands.^[3]

Trichostema setaceum
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Lamiales
Family:	Lamiaceae
Genus:	Trichostema
Species:	T. setaceum
Binomial name
Trichostema setaceum Houtt.
Synonyms[1]
Trichostema lineare (Walter) Trichostema dichotomum L. var. lineare (Walter) Pursh

Description

Narrowleaf bluecurls is an annual growing to 50 cm (20 in). Stunning purple-blue flowers are borne from September to October. The stamens extend far beyond the petals, growing up to 20 mm (0.79 in).^[4]

Conservation

It is listed as endangered in Kentucky, New York, Ohio, and Pennsylvania.^[5] It is critically imperiled in Missouri.^[4]