Convolvulaceae
Cuscuta

Cuscuta occidentalis Millsp.

First published in Publ. Field Mus. Nat. Hist., Bot. Ser. 5: 204 (1923)
This species is accepted
The native range of this species is W. U.S.A. to NW. Mexico. It is a holoparasitic annual and grows primarily in the temperate biome.

Distribution

Native to:

California, Colorado, Idaho, Mexico Northwest, Nevada, Oregon, Utah, Washington, Wyoming

Synonyms

Homotypic Synonyms

Classification

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Publications

POWO follows these authorities in accepting this name:

  • Costea, M. in Costea, Mihai (2011-Sept-30). Cuscuta names missing. personal communication (email) 30 Sept. 2011: "Cuscuta names missing".
  • Cronquist, A. et al. in Cronquist, A., et al. (1984). Convolvulaceae. Intermountain Flora, vascular plants of the intermountain west, U.S.A. 4: 74-84. New York Botanical garden.
  • Flora of North America Editorial Committee (2023). Flora of North America North of Mexico 14: 1-505. Oxford University Press, New York, Oxford.
  • Hitchcock, C.L. & A. Cronquist in Hitchcock, C.L. & A. Cronquist (1991). Convolvulaceae. Flora of the Pacific Northwest: 363-366. Univ. Washington Press.
  • Wiggins, I.L. in Wiggins, I.L. (1980). Convolvulaceae. Flora of Baja California: 373-385. Stanford Univ. Press.
  • Yuncker, T.G. (1932). The genus Cuscuta. Memoirs of the Torrey Botanical Club 18: 113-331. New York Botanical Garden.

An alternative taxonomy had been proposed by the following authorities:

  • Govaerts, R. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. MIM, Deurne. [Cited as Cuscuta californica var. breviflora.]
  • Kartesz, J.T. in Kartesz, J.T. (1994). Convolvulaceae, Cuscutaceae. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland 1: 217-221-& 227-228. Timber Press. [Cited as Cuscuta californica var breviflora.]

Kew Backbone Distributions

  • Cronquist, A. et al. in Cronquist, A., et al. (1984). Convolvulaceae. Intermountain Flora, vascular plants of the intermountain west, U.S.A. 4: 74-84. New York Botanical garden.
  • Hitchcock, C.L. & A. Cronquist in Hitchcock, C.L. & A. Cronquist (1991). Convolvulaceae. Flora of the Pacific Northwest: 363-366. Univ. Washington Press.
  • Wiggins, I.L. in Wiggins, I.L. (1980). Convolvulaceae. Flora of Baja California: 373-385. Stanford Univ. Press.

Other Data

Other Kew resources that provide information on this taxon:

Date Reference Identified As Barcode Type Status Has image?
Jan 1, 2006 Hatweg, K.T. [1863] United States K000195756 Unknown Type Material Yes
s.coll. [s.n.] United States K000852564 Unknown Type Material Yes
Bigelow, J.M. [s.n.] United States K000195755 Unknown Type Material Yes
Parry, C.C. [206] United States K000852565 Unknown Type Material Yes
Nuttall, L.W. [902] United States K000195757 Unknown Type Material Yes

Sources

  • Herbarium Catalogue Specimens

    • 'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    • Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2025. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0

  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2025. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0