Cooper's dogweed
Cooper's dyssodia

Adenophyllum cooperi

Cooper's dogweed

Color: Yellow/orange/gold

Common name: Cooper's dogweed, Cooper's dyssodia

Latin name:
Adenophyllum cooperi (was Dyssodia cooperi)


30 to 50 cm

Ray and disk flowers with the ray flowers sitting lower than the disk flowers.

Coarsely toothed or shallow lobed with spiny edges.

Eastern and Southern Mojave Desert and desert mountains, also s Nevada, nw Arizona.

Dry, sandy slopes and washes.

600 to 1500 m

Flowering time:
May–Jun, Sep–Nov

Perennial subshrub, several erect stems covered with tiny hairs, unpleasant odor, common along roadsides. Can be seen along Kelbaker Road and Kelso-Cima Road in the Mojave National Preserve as well as Highway 247 south of Barstow where this example was photographed.

Cooper's dogweed


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