Carnegiea gigantea, Giant Saguaro

Southwest Desert Flora

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

Cirsium ochrocentrum, Yellowspine Thistle

Thermopsis divaricarpa, Spreadfruit Goldenbanner

Thermopsis divaricarpa, Spreadfruit Goldenbanner Thermopsis divaricarpa, Spreadfruit Goldenbanner Thermopsis divaricarpa, Spreadfruit Goldenbanner Thermopsis divaricarpa, Spreadfruit Goldenbanner

Scientific Name: Thermopsis divaricarpa (possibly Thermopsis montana)
Common Name: Spreadfruit Goldenbanner

Also Called: Foothills Goldenbanner, Pine Goldenpea, Spread-Fruit Golden-Banner, Spreading Goldenbean

Family: Fabaceae or Leguminosae Family

Synonyms: (Thermopsis montana var. divaricarpa, Thermopsis pinetorum, Thermopsis rhombifolia var. divaricarpa)

Status: Native

Duration: Perennial

Size: Up to 2 feet (.61 m).

Growth Form: Forb/herb; plants spread by rootstock.

Leaves: Green; palmately compound, 3 ovate leaflets.

Flower Color: Yellow; showy, pea-like flowers, flowering stem is a spike; fruit is a pod.

Flowering Season: April to July, blooms both earlier and later in Texas from May to August.

Elevation: 6,000 to 9,500 feet (1,829 - 2,896 m).

Habitat Preferences: Upper elevations, rocky hillsides, pine forests.

Recorded Range: In the United States, Spreadfruit Goldenbanner is found in the western part of the country in Montana south to New Mexico and Arizona.

North America & US County Distribution Map for Thermopsis divaricarpa.

North America species range map for Spreadfruit Goldenbanner, Thermopsis divaricarpa:

North America species range map for Spreadfruit Goldenbanner, Thermopsis divaricarpa:
Click image for full size map.

U.S. Weed Information: Unknown
Invasive/Noxious Weed Information: Unknown

Threatened/Endangered Information: Unknown

U.S. Wetland Indicator: In North America Thermopsis divaricarpa has the following wetland designations:
  • Arid West, FAC
  • Great Plains, FAC;
  • Western Mountains, Valleys, and Coast, FAC;

  • FAC = Facultative, occur in wetlands and non-wetlands

    Genus Information: In North America, USDA Plants Database lists 10 species for Thermopsis divaricarpa. Worldwide, World Flora Online includes 71 accepted species names and a further 40 scientific names of infraspecific rank for the genus.

    The genus Thermopsis was published in 1811 by Robert Brown, (1773-1858).

    In the Southwestern United States: Arizona and Utah each have 2 species of genus, California has 4 species, Nevada and Texas have 0 species, New Mexico has 3 species and Texas has species. Data approximate, subject to revision.

    Comments: This species is difficult to distinguish to from Thermopsis montana. The photos of the plants in the photos above were taken of plants on Aztec Peak, Tonto National Forest, Maricopa County, Arizona. The plants were emerging quickly on the east side of a mountain following a major forest fire.

    Plants of the genus Thermopsis are herbaceous perennials known collectively as Goldenbanners.

    Importance to Wildlife, Birds and Livestock
    Spreadfruit Goldenbanner, Thermopsis divaricarpa has attractive pea-like flowers, the flowers and their seeds may be visited by hummingbirds and/or small mammals including rodents and granivorous birds in search of nectar or food.

    Beneficial Value to Butterflies, Honey Bees and Insects
    Spreadfruit Goldenbanner, Thermopsis divaricarpa has attractive pea-like flowers, the flowers and their plants may be visited by butterflies, moths, flies, honeybees, Native Bees and other insects in search of food and nectar.

    Etymology:
    The genus “Thermopsis” (Thermop'sis:) is from the Greek thermos for lupine and opsis, "like," bearing yellow lupine-like flower heads.

    The genus Thermopsis was published in 1811 by Robert Brown, (1773-1858).

    The species epithet divaricarpa (divaricar'pa:) is from the Latin divarico, "to spread apart," and carpa, "fruit."

    The taxon Thermopsis divaricarpa was described in 1898 by Aven Nelson, (1859-1952).

    Ethnobotany - Native American Ethnobotany; University of Michigan - Dearborn
    Unknown

    Date Profile Completed: 09/09/2015, updated 02/28/2022

    References and additional information:

    Arizona Flora, Kearney, Thomas H., Peebles, Robert H., 1960, University of California Press, Berkley and Los Angeles, California as Thermopsis pinetorum.
    Plants.USDA.gov; Department of Agriculture, Natural Resources Conservation Service on-line database and USGS ITIS search; accessed on-line; 02/28/2022.
    https://plants.usda.gov/home/basicSearchResults?resultId=3a5bb46f-b9a0-4031-81a2-9227aa870ffc
    World Flora Online; A Project of the World Flora Online Consortium; An Online Flora of All Known Plants - (accessed on-line; 03/28/2022)
    http://www.worldfloraonline.org/search?query=thermopsis
    Native Plant Information Network, NPIN. Published on the Internet http://www.wildflower.org/plants/; accessed on-line 02/28/2022. Lady Bird Johnson Wildflower Center at The University of Texas, Austin, TX.
    https://www.wildflower.org/plants/result.php?id_plant=THDI4
    Kleiman, Russ, Dr., Associate Botanist, Dale A. Zimmerman Herbarium; Vascular Plants of the Gila Wilderness; Thermopsis rhombifolia (Nuttall ex Pursh) Nuttall ex Richardson var. divaricarpa (A. Nelson) Isely (Golden Pea) - accessed 02/28/2022; Presented in Association with the Western New Mexico University Department of Natural Sciences
    https://wnmu.edu/academic/nspages/gilaflora/thermopsis_rhombifolia_divaricata.html
    Wikipedia contributors. "Thermopsis." Wikipedia, The Free Encyclopedia. Wikipedia, The Free Encyclopedia, 30 Jan. 2015. Web. 28 Mar. 2022.
    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/
    Etymology: Michael L. Charters California Plant Names: Latin and Greek Meanings and Derivations; A Dictionary of Botanical and Biographical Etymology - (accessed on-line; 02/28/2022)
    http://www.calflora.net/botanicalnames/pageT.html
    http://www.calflora.net/botanicalnames/pageD.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 on-line; 23 February 2022].
    https://www.ipni.org/?q=thermopsis