Brickellia coulteri, Coulter's Brickellbush
Scientific Name: Brickellia coulteri
Common Name: Coulter's Brickellbush
Also Called: Coulter Brickellbush
Family: Asteraceae, Sunflower Family
Synonyms: ( )
Size: 1 to 3 feet or more.
Growth Form: Shrub, Subshrub; upright, stems branching, somewhat sticky with glandular pubescent.
Leaves: Green; opposite, simple, triangular or deltoid shape, petioles present; leaf blades with 3 distinct nerve channels from base, margins toothed at base.
Flower Color: Light yellowish/green; heads slender, sometimes purple or brown tinged; disk flowers only no ray, 13 to 25 (17) florets; heads on tips of much branched inflorescence (panicle); phyllary many in series; greenish and also with pink, purple or brown tinged, somewhat lanceolate, fruit is an achene.
Flowering Season: March to November.
Elevation: Up to 4,500 feet.
Habitat Preferences: Dry rocky slopes and hillsides, canyons.
Recorded Range: A strictly southwestern species that is found mostly in Arizona and northern Mexico and Baja California with records in southwest NM and perhaps extreme west TX. In Arizona Brickellia coulteri is common in the northwest and southern half 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: Coulter’s Brickellia may be identified in part by its florets distinctive bracts or linear phyllaries tinged brownish, pink or purple. With 22 species of Brickellia in Arizona, it is often difficult to determine or key out the species you’re working with. As with many similar species the main differences here are the details of the flowers which vary greatly. Brickellia coulteri is common in our state and can be identified more readily than others.
The genus Brickellia is large according to the Flora of North America, with more than 100 species in North America, Mexico, and Central America. Because of its large number of species, the genus has several reference names including Brickellbush, Brickelbush and Brickellia. The genus is named for naturalist John Brickell (1748 – 1809).