Trichostema dichotomum blue curls Lamiaceae TRDI; Bx, pb; Q; R;

 

Trichostema dichotomum.Bobby Hattaway.www.discover.life.org.(2)

Trichostema dichotomum.Bobby Hattaway.www.discover.life.org. (Accessed 4/2014).

Trichostema dichotomum is an annual herb to 70 cm tall (usually much less), slender, minutely glandular-hairy, branched. 

Leaves opposite, to 6 x 2.5 cm, oblong to egg-shaped, tips blunt. 

Flowers blue irregularly 5-lobed, lowest lobe longer than other 4, stamens blue, much longer that petal lobes, filaments to 1.5 cm, arching upward and curled back, calyx tubular irregularly 5-lobed, longest teeth are lowest, to 0.5 cm, becoming 0.9 in fruit, Aug.-Sept.. 

Fruit dry nutlets to 0.3 cm. 

Wetland status: UPL. 

Frequency in NYC: Very infrequent. 

Origin: Native. 

Habitat: Open, dry, soil, old fields, open woods, open dry, disturbed soil.