Carnegiea gigantea, Giant Saguaro

Southwest Desert Flora

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

Cirsium ochrocentrum, Yellowspine Thistle

Logfia arizonica, Arizona Cottonrose

Logfia arizonica, Arizona Cottonrose, Southwest Desert Flora Logfia arizonica, Arizona Cottonrose, Southwest Desert Flora Logfia arizonica, Arizona Cottonrose, Southwest Desert Flora    Logfia arizonica, Arizona Cottonrose, Southwest Desert Flora

Scientific Name: Logfia arizonica
Common Name: Arizona Cottonrose
Also called: Fluffweed
Family: Asteraceae, Sunflower Family
Synonyms: (Filago arizonica, Oglifa arizonica)
Status: Native
Duration: Annual
Size: 6 to 18 inches.
Growth Form: Forb/herb; stems forked, spreading or ascending; dark purple stems; semi-glabrous; mostly leafless between fork nodes.
Leaves: alternate; linearly narrow or lanceolate; entire, leaves extend beyond flowering head clusters.
Flower Color: Light yellow; heads small, 3 or more heads per group; whitish hairs (pilose) in flowering cluster look woolly; heads compact and semi-rounded mass, fruit is an achene.
Flowering Season: March to April.
Elevation: 1,000 to 2,500 feet.
Habitat Preferences: Lower desert areas, Creosote Bush communities, moist areas, sandy and gravelly washes, mesas, rocky hillsides and roadsides.
Recorded Range: A rare plant in the United States it is found only in southwest Arizona and southeast California. Also found in Baja California and northwest Mexico.

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: 6 species in Logfia in the United States. 3 native species in the southwestern United States and 3 invasive species scatter about.

Comments:Arizona Cottonrose is species of daisy that if not examined carefully might confuse it with Fluff Grass, Erioneuron pulchellum, a true member of the Grass Family (Poaceae) which it superficially resembles.

Arizona Cottonrose or Fluffweed has an interesting history of botanists cleverly using anagrams when renaming a species. Originally Arizona Cottonrose was placed in genus Oglifa (Oglifa arizonica). Botanists changed that classification to the new genus Filago (Filago arizonica), which is an anagram of Oglifa. Arizona Cottonrose was changed a third time using the same letters in the original name to Logfia.

Date Profile Completed: 8/6/2012; Updated, 07/26/2015
References:
U.S. Dept. of Agriculture, Natural Resources Conservation Service on-line database
Arizona Flora, Kearney, Thomas H., Peebles, Robert H., 1960, University of California Press, Berkley and Los Angeles, as Filago arizonica
The Jepson Manual, Citation:
http://ucjeps.berkeley.edu/interchange/I_treat_indexes.html Mon Aug 6 13:17:38 2012, as Filago arizonica.
James D. Morefield, FNA | Family List | FNA Vol. 19, 20 and 21 | Asteraceae | Logfia, Flora of North America Editorial Committee, eds. 1993+. Flora of North America North of Mexico. 16+ vols. New York and Oxford. (accessed 08/06/2012)
SEINet for synonyms, scientific names and recorded geographic locations, http://swbiodiversity.org/seinet/