Carnegiea gigantea, Giant Saguaro

Southwest Desert Flora

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

Cirsium ochrocentrum, Yellowspine Thistle

Scabrethia scabra, Badlands Mule-Ears

Badlands Mule-ears is a perennial native that has large showy daisy-like flowers; 4 inches (10 cm) wide. Scabrethia scabra Badlands Mule-ears blooms from May or June to September or October and prefers elevations from 5,000 to 9,500 feet (1,52-2,896 m). Scabrethia scabra Badlands Mule-ears, as shown in the photo, prefers dry slopes, mesas and sandy soil. Scabrethia scabra

Scientific Name: Scabrethia scabra
Common Name: Badlands Mule-ears

Also Called: Badland Mulesears, Badlands Wyethia

Family: Asteraceae, Sunflower Family

Synonyms: (Wyethia scabra)

Status: Native

Duration: Perennial

Size: Up to 2 feet (61 cm)

Growth Form: Forb/herb, subshrub; upright (erect) low mounding with woody base; multiple light green or whitish stems; older dried growth visible.

Leaves: Green; leaves arranged alternately along stem; leaf shape lanceolate with prominent midvein.

Flower Color: Yellow; flower heads few to many; up to 4 inches (10 cm) wide, flower heads with both ray and disk florets; fruit is a cypsela.

Flowering Season: May or June to September or October

Elevation: 5,000 to 9,500 feet (1,52-2,896 m).

Habitat Preferences: Dry slopes, mesas, sandy soil.

Recorded Range: In the United States, Badlands Mule-Ears is found in the western United States in AZ, CO, MT, NM, UT and WY, primarily in AZ, UT and WY. In the southwest it is found in AZ, NM, UT and northward.

North America & US County Distribution Map for Scabrethia scabra.

North America species range map for Badlands Mule-Ears, Scabrethia scabra:

North America species range map for Badlands Mule-Ears, Scabrethia scabra: Click image for full size map.
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 is 1 species and 5 accepted taxa overall for Scabrethia. Worldwide, The Plant List includes accepted species names and a further 2 scientific names of infraspecific rank for Scabrethia

The genus Scabrethia was published in 1998 by William Alfred Weber (1918-2020), American botanist and lichenologist.

The genus Wyethia was published in 1834 by Thomas Nuttall, (1786-1859)

There are 3 sub-species in Scabrethia scabra:
Scabrethia scabra ssp. attenuata, Badlands Mule-ears (AZ, NM, UT);
Scabrethia scabra ssp. canescens, Badlands Mule-ears (AZ, CO, NM, UT);
Scabrethia scabra ssp. scabra, also Badlands Mule-ears (AZ, CO, WY, MT, UT).

Comments: Badlands Mule-Ears is relatively common in northern Arizona particularly in areas with sandy soils and mesas. The photo above was taken 06/17, Monument Valley, Navajo County, Arizona.

Importance to Wildlife, Birds and Livestock
Scabrethia scabra has attractive showy daisy-like flowers; the flowers and their seeds and plants may be visited by hummingbirds and/or small mammals including rodents and granivorous birds in search of food, nectar, shelter and protection through cover.

Beneficial Value to Butterflies, Bees and Insects
Scabrethia scabra has attractive showy daisy-like flowers; the flowers and their plants may be visited by butterflies, moths, native bees and other insects in search of nectar and/or other food.

Etymology:
The genus “Scabrethia” (Scabretha:) - from "scabr" meaning rough and "etha" from Wyethia. The original genus Wyethia, was renamed to Scabrethia by William Alfred Weber in 1998. The new name partly honors Nathaniel Jarvis Wyeth (1802-1856) for which the original genus was named.

The genus “Wyethia” is named for Nathaniel Jarvis Wyeth (1802-1856), an American inventor, businessman, plant collector and explorer who discovered plants and sent samples to his friend Thomas Nuttall, (1786-1859).

The genus Scabrethia was published in 1998 by William Alfred Weber (1918-2020), American botanist and lichenologist.

The genus Wyethia was published in 1834 by Thomas Nuttall, (1786-1859)

The species epithet scabra (sca'bra:) is from the Latin scabr- or scaber meaning rough or scurfy, a reference to the roughness of the foliage.

Ethnobotany
Wyethia scabra is used for a multitude of purposes by southwestern United States indigenous peoples.
  • Hopi Drug, Emetic; Plant said to be a very strong, potentially lethal emetic.
  • Hopi Drug, Poison; Plant sometimes used as an emetic, but if not vomited it would kill the person.
  • Navajo, Kayenta Drug, Emetic; Plant used as an emetic for stomachaches.
  • Navajo, Kayenta Drug, Gastrointestinal Aid; Plant used as an emetic for stomachaches

  • See complete listing of ethno-botanical uses at Native American Ethnobotany, University of Michigan, Dearborn.

    Date Profile Completed: 10/25/2012; updated format 10/24/2020
    References:
    Arizona Flora, Kearney, Thomas H., Peebles, Robert H., 1960, University of California Press, Berkley and Los Angeles as Wyethia scabra
    U.S. Dept. of Agriculture, Natural Resources Conservation Service on-line database
    https://plants.usda.gov/core/profile?symbol=SCSC15
    The Plant List (2013). Version 1.1. Published on the Internet; http://www.theplantlist.org/; accessed 10/24/2020.
    http://www.theplantlist.org/1.1/browse/A/Compositae/Scabrethia/
    William A. Weber, FNA | Family List | FNA Vol. 21 | Asteraceae; Scabrethia, 1. Scabrethia scabra (Hooker) W. A. Weber, Phytologia. 85: 21. 1999. ; Flora of North America Editorial Committee, eds. 1993+. Flora of North America North of Mexico. 16+ vols. New York and Oxford.
    Native Plant Information Network, NPIN (2013). Published on the Internet http://www.wildflower.org/plants/ (accessed 10/24/2020). Lady Bird Johnson Wildflower Center at The University of Texas, Austin, TX.
    https://www.wildflower.org/plants/result.php?id_plant=SCSCS5
    Seiler, John, Peterson, John, North American species range map courtesy of Virginia Tech, Dept. of Forest Resources & Environmental Conservation
    http://dendro.cnre.vt.edu/dendrology/
    SEINet synonyms, scientific names, geographic locations, general information.
    http://swbiodiversity.org/seinet/
    Etymology:Michael L. Charters California Plant Names: Latin and Greek Meanings and Derivations; A Dictionary of Botanical and Biographical Etymology - (accessed 10/24/2020)
    http://www.calflora.net/botanicalnames/pageSA-SH.html
    http://www.calflora.net/botanicalnames/pageW.html
    IPNI (2020). International Plant Names Index. Published on the Internet http://www.ipni.org, The Royal Botanic Gardens, Kew, Harvard University Herbaria & Libraries and Australian National Botanic Gardens. [Retrieved 24 October 2020].
    https://www.ipni.org/?q=family%3AAsteraceae%2Cgenus%3Awyethia