Geraea canescens, Hairy Desertsunflower
Scientific Name: Geraea canescens
Common Name: Hairydesertsunflower
Also Called: Desert Gold, Desert Sunflower, Desertgold, Hairy Desert Sunflower, Hairy Desert Sun-flower, Hairy Desert-Sunflower, Hairydesertsunflower, Geraea canescens
Family: Asteraceae, Sunflower Family
Synonyms: ( Encelia eriocephala var. paniculata, Geraea canescens var. canescens, Geraea canescens var. paniculata)
Native Duration: .
Annual Size: 4 to 31 inches (10 to 80 cm) tall or more
Growth Form: ; single branches/stems hairy; bristly ( Forb/herb ) or soft-hairy ( strigose ) with dense white hair ( villous ).
canescent Leaves: Green or gray or brown; leaf blades somewhat variable, to ovate , leaves arranged along stem in lanceolate fashion; leaf edges may to with or without alternate
Flower Color: Yellow; golden-yellow; showy large heads; flowers on tips of branches; both solitary (10 to 21) and ray disk ; florets is a fruit with small cypsela .
pappus Flowering Season: January to June in Arizona; February to May and again in October to November in California.
Elevation: -130 to 4,500 feet (-37 to 1,372 m) or lower; below 4,000 (1,219 m) in California.
Habitat Preferences: Common in Creosote Bush (Larrea tridentata) communities in desert sandy and gravelly soils.
Recorded Range: Geraea canescens is found in the southwestern United States in AZ, CA, NV, UT. It is also native to Baja California and Sonora, Mexico. In Arizona it is found in the western and southwestern parts of the state.
North America & US County Distribution Map for
. Geraea canescens
North America species range map for Hairy Desertsunflower,
North American range map courtesy of Virginia Tech, Dept. of Forest Resources & Environmental Conservation
Click image for full size map
U.S. Weed Information: Unknown
Invasive/Noxious Weed Information: Unknown
Wetland Indicator: Unknown
Threatened/Endangered Information: Unknown Genus Information: In North America there are 2 species and 2 accepted taxa overall for genus. Worldwide, The Plant List includes 2 accepted species names and a further 4 scientific names of infraspecific rank for the genus.
The genus Geraea was published in 1846 by and John Torrey, (1796-1873) .
Asa Gray, (1810-1888)
In the Southwestern United States: Arizona, Nevada and Utah each have
1 species of genus, California has 2 species and New Mexico and Texas have 0 species. Data approximate and subject to revision.
Comments: Geraea canescens is a Mojave and Colorado Sonoran Desert species with high tolerances to alkaline soils. This species is known to hybridize with Brittlebush, . Encelia farinosa
Importance to Wildlife, Birds and Livestock Geraea canescens flowers, seeds and plants may be visited by hummingbirds and/or small mammals in search of food, nectar or cover.
Special Value to , Butterflies and Insects Native bees Geraea canescens brightly colored flowers and plants may be visited by butterflies, moths and other insects in search of food, nectar or cover.
The genus Etymology: (Gerae'a:) from the Greek word "geraios" for old, for the white-haired involucre.
“Geraea” The genus Geraea was published in 1846 by and John Torrey, (1796-1873) .
Asa Gray, (1810-1888) The species epithet “ (canes'cens:) means covered with short gray or white hairs.
Date Profile Completed: 11/25/2016,
University of California Press, Berkley and Los Angeles, California.
Arizona Flora, Kearney, Thomas H., Peebles, Robert H., 1960, U.S. Dept. of Agriculture, Natural Resources Conservation Service on-line database and USGS ITIS search -
The Plant List (2013). Version 1.1. Published on the Internet; http://www.theplantlist.org/
Gary I. Baird, | Family List | FNA Vol. 21 | Asteraceae | Geraea, 1. Geraea canescens Torrey & A. Gray, Proc. Amer. Acad. Arts. 1: 49. 1847.; Flora of North America Editorial Committee, eds. 1993+. Flora of North America North of Mexico. 16+ vols. New York and Oxford.
FNA David J. Keil & Curtis Clark 2012, Geraea canescens, in Jepson Flora Project (eds.) Jepson eFlora, /eflora/eflora_display.php?tid=3054, accessed on July 28, 2020.
Wiggins 1964, Kearney and Peebles 1969, Plants DB; Editor; S.Buckley, 2010 from SEINet Field Guide, on-line; (accessed 07/28/2020).
, NPIN (2013). Published on the InternetLady Bird Johnson Wildflower Center at The University of Texas, Austin, TX. - (accessed 07/28/2020).
Native Plant Information Network https://www.wildflower.org/plants/result.php?id_plant=GECA2
Wikipedia contributors, 'Geraea canescens', Wikipedia, The Free Encyclopedia, 27 December 2019, 06:03 UTC,
https://en.wikipedia.org/w/index.php?title=Geraea_canescens&oldid=93262146> [accessed 28 July 2020]
SEINet synonyms, scientific names, geographic locations, general information.
Etymology: Michael L. Charters California Plant Names: Latin and Greek Meanings and Derivations; A Dictionary of Botanical and Biographical Etymology - (accessed 07/18/2020)