MIDWEST :

Silphium terebinthinaceum

Andropogon gerardii

Sorghastrum nutans

Asclepias syriaca

Pycnanthemum virginicum

Symphyotrichum novae-anglieae

WESTERN PLAINS (NEBRASKA/SOUTH DAKOTA)

CENTRAL TEXAS :

SOUTH TEXAS :

NORTHEASTERN US :

SOUTHEASTERN US :

SOUTHWEST (NEW MEXICO/ARIZONA) :

CENTRAL WEST (COLORADO/UTAH) :

COASTAL PACIFIC NORTHWEST (WESTERN WASHINGTON/WESTERN OREGON) :

NORTHWEST (EASTERN WASHINGTON/IDAHO/EASTERN OREGON) :