Adenophyllum porophylloides, San Felipe Dogwood
Scientific Name: Adenophyllum porophylloides
Common Name: San Felipe Dogwood
Also Called: San Felipe Dyssodia
Family: Asteraceae, Sunflower Family
Synonyms: (Dyssodia porophylloides)
Size: Up to 2 feet.
Growth Form: Subshrub; woody base with erect multiple smooth (glabrous) slender stems and branches, aromatic.
Leaves: Dark green; basal opposite, others alternate, pinnately divided into linear lobes, entire, glands near the base and tip.
Flower Color: Yellow; becoming orange or red-orange; heads may be radiate or discoid, ray flowers 0 to 12. Flower heads on tips of stem (peduncle). The bracts or phyllaries surrounding the flower head have large visible resin glands; fruit is an achene.
Flowering Season: March to October, with ample summer rainfall.
Elevation: 1,000 to 4,000 feet.
Habitat Preferences: Washes, mesas, dry rocky slopes.
Recorded Range: Limited distribution in the United States to AZ, CA and NV. Also native to northern Baja California and Mexico. In Arizona it may be found in the western 2/3 of the state.
U.S. Weed Information: No data available.
Invasive/Noxious Weed Information: No data available.
Wetland Indicator: No data available.
Threatened/Endangered Information: No data available.
Comments: San Felipe Dogweed is both a Mojave and Sonoran deserts species. Through its numerous resin glands this species emits a pungent rather unpleasant odor.
At a quick glance San Felipe Dogweed looks superficially like its closely related cousin Odora, Porophyllum gracile, which has significant differences in the flower head. They both have strong disagreeable odors.