Carnegiea gigantea, Giant Saguaro

Southwest Desert Flora

Home to the plants of the Sonoran, Chihuahuan and Mojave Deserts

Cirsium ochrocentrum, Yellowspine Thistle

Brickellia coulteri, Coulter's Brickellbush

Coulter's Brickellbush has small light yellowish-green and sometimes purple or brown tinged florets. These floral heads consists solely of discoid florets. This species blooms from March to November or September to May if winter rains are sufficient. Brickellia coulteri Coulter's Brickellbush is native perennial Brickellia that grows to 3 feet or more. It is a shrub or sub-shrub with multiple branches from the base. The branches are opposite, ascending or spreading. The glands dotted along the stems and flowering stalks make the plants sticky to touch. Brickellia coulteri Coulter's Brickellbush leaves are green, opposite, simple ovate to deltate and with short stems and the leaf margins have 1 to 3 sets of sharp teeth usually near the base. The leaf blades have 3-distinct nerve channels also from the base. Brickellia coulteri    Coulter's Brickellbush floral heads are in loose panicles with hairy pubescent glandular flowering stalks. The fruits are yellow-brown t yellow-gray achene with a pappus of 28 to 40 bristles. Brickellia coulteri

Scientific Name: Brickellia coulteri
Common Name: Coulter's Brickellbush
Also Called: Coulter Brickellbush
Family: Asteraceae, Sunflower Family
Synonyms: (Coleosanthus coulteri)
Status: Native
Duration: Perennial
Size: 1 to 3 feet or more.
Growth Form: Shrub, subshrub; stems much branched from base; branches opposite, ascending or spreading; pubescent with yellow hairs, often gland-dotted, somewhat sticky.
Leaves: Green; opposite, simple; ovate to deltate; short petioles; margins with 1 to 3 sets of sharp teeth, usually near the base; leaf blades with 3-distinct nerve channels from the bases.
Flower Color: Light yellowish/green, sometimes purple or brown tinged; heads in loose panicles; flowering stalks or peduncles pubescent and sometimes gland-dotted; phyllaries greenish and often purple-tinged, 4-5 striations and unequal, lance-ovate to lanceolate, smooth or sparsely pubescent; disk florets 13 to 25; floral heads on tips of much branched inflorescence; fruit is a yellow-brown to yellow-gray achene with a pappus of 28 to 40 smooth to barbellulate bristles.
Flowering Season: March to November and again from September to May if winter rainfall is sufficient.
Elevation: 2,000 to 4,000 feet.
Habitat Preferences: Arid rocky slopes, hillsides, canyons.
Recorded Range: A strictly southwestern species that is found mostly in AZ, NM, TX as well as northern Mexico and Baja California. Brickellia coulteri is found primarily in Arizona and also in the southwest part of New Mexico and extreme west Texas.

North America & US County Distribution Map for Brickellia coulteri.

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.

Genus Information: In North America there are 36 species and 36 accepted taxa overall for Brickellia. World wide, The Plant List includes 112 accepted species names and includes a further 136 of infraspecific rank for the genus.

In the Southwestern United States: Arizona has 22 species of Brickellia, California has 13 species, Nevada has 12 species, New Mexico has 19 species, Texas has 16 species, Utah has 7 species. All data is approximate and subject to taxonomic changes.

Comments: Coulter’s Brickellia is a fragrant shrub and may be identified in part by its distinctive bracts or linear phyllaries tinged brownish, pink or purple. With 22 species of Brickellia in Arizona, it is often difficult to determine to identify exactly which 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.

In Southwest Desert Flora also see; California Brickellbush, Brickellia californica, Chihuahuan Brickellbush, Brickellia floribunda and Veiny Brickellbush, Brickellia venosa.

Etymology:
The genus Brickellia is named in honor of John Brickell (1748–1809), Irish-born physician and naturalist from Savannah Georgia. The genus was named in honor of John Brickell by American botanist Stephen Elliott in one of his most important works; A Sketch of the Botany of South-Carolina and Georgia. There is little other recorded information about Dr. John Brickell. Confusion is possible as another "John Brickell" (1791-1844), also a naturalist and also from Ireland is the author of a thoroughly plagiarized 1729 publication, The Natural History of North-Carolina.

The specific epithet coulteri is named to honor Dr. Thomas Coulter (1793-1843), an Irish physician, botanist and explorer. Dr. Coulter was one of the first botanists to collect plants and conduct botanical research in Arizona. He is well known for his travels and botanical research in Mexico and he was a member of the Royal Irish Academy, and a fellow of Trinity College, Dublin, where he founded the college's herbarium.
Date Profile Completed: 8/9/2014; Updated, 07/25/2015, updated 09/13/2017
References:
Arizona Flora, Kearney, Thomas H., Peebles, Robert H., 1960, University of California Press, Berkley and Los Angeles
U.S. Dept. of Agriculture, Natural Resources Conservation Service on-line database and USGS ITIS search - (accessed 09/11/2017)
https://plants.usda.gov/java/ClassificationServlet?source=profile&symbol=BRICK&display=31
The Plant List (2013). Version 1.1. Published on the Internet; http://www.theplantlist.org/ (accessed 09/11/2017).
http://www.theplantlist.org/1.1/browse/A/Compositae/Brickellia/
Randall W. Scott, FNA | Family List | FNA Vol. 21 | Asteraceae | Brickellia; 9. Brickellia coulteri A. Gray, Smithsonian Contr. Knowl. 3(5): 86. 1852. Flora of North America Editorial Committee, eds. 1993+. Flora of North America North of Mexico. 16+ vols. New York and Oxford.
S. Buckley 2010, F. S. Coburn 2015, A. Hazelton 2015; Brickellia coulteri; Field Guide on Seinet (accessed 09/13/2017)
Al Schneider, Wildflowers, Ferns, & Trees of Colorado, New Mexico, Arizona, & Utah; Biographies of scientists and explorers honored. (accessed 09/11/2017).
http://www.swcoloradowildflowers.com/biographies%20of%20naturalists.htm
Wikipedia contributors, 'Brickellia', Wikipedia, The Free Encyclopedia, 22 May 2017, 14:44 UTC,
https://en.wikipedia.org/w/index.php?title=Brickellia&oldid=781661108> [accessed 11 September 2017 ]
Wikipedia contributors, 'Thomas Coulter', Wikipedia, The Free Encyclopedia, 3 June 2017, 10:31 UTC,
https://en.wikipedia.org/w/index.php?title=Thomas_Coulter&oldid=783593743> [accessed 13 September 2017]
SEINet synonyms, scientific names, geographic locations, general information, (accessed 09/11/2017).
http://swbiodiversity.org/seinet/