Lygodesmia is a genus of flowering plants in the Asteraceae family (sunflower family).
USDA mentions nine species in genus
http://plants.usda.gov/java/Cl...
all nine species native in USA
http://plants.usda.gov/java/pr...
One, Lygodesmia juncea, according to USDA map distribution, is native in Canada, too.
But in "Flora of North America" are mentioned, only five species
http://www.efloras.org/florata...
A flower of Lygodesmia texana.