Carolina elephant's-foot

Antennaria neglecta

Giant ragweed

Plants

Helichrysum arenarium

Plants

Western ragweed

Plants

Artemisia princeps

Plants

Conyza sumatrensis

Plants

Antennaria alpina

Plants

Daisy fleabane

Plants

Woodland sunflower

Plants

Philadelphia fleabane

Plants

Fox-and-cubs

Plants

Conyza

Plants

Spanish needles

Plants

California mugwort

Plants

Erigeron bonariensis

Plants

Solidago ohioensis

Silverrod

Frost aster

Plants

Plumeless thistles

Plants

Erigeron divergens

Plants

Arnica latifolia

Plants

Erigeron speciosus

Large-leaved aster

Plants

Heterotheca

Plants

Pluchea sericea

Plants

Adenostyles

Plants

Tarweeds

Plants

Coast tarweed

Plants

Wood asters

Plants

Tetradymia

Plants

Grindelia hirsutula

Plants

Isocoma

Plants

Hemizonia

Plants

Hazardia

Plants

Ericameria ericoides

Plants

Acourtia microcephala

Plants

Gamochaeta

Plants

Cirsium occidentale

Plants

Sneezeweeds

Plants

Common sneezeweed

Plants

Telegraphweed

Plants

Golden crownbeard

Plants

Pseudognaphalium

Plants

Yellow coneflower

Plants

Prairie coneflowers

Plants

Wild quinine

Coreopsis palmata

Plants