Ambrosia tomentosa, the skeletonleaf bur ragweed,[3] silverleaf povertyweed, or skeleton-leaf bursage,[4][5][6] is a North American species of perennial plants in the family Asteraceae.[7]

Skeletonleaf bur ragweed is native to the west-central part of the United States, primarily the western Great Plains, the Colorado Plateau, and eastern Great Basin.[8][9] It is often found growing alongside roads and in the sandy parts of plains.[10]

It is considered a noxious weed in several states.[6][11][12] It is also considered a severe allergen.[13]

Description

Ambrosia tomentos grows up to 3 feet (91 cm) tall. The deeply lobed hairy leaves grow to 5 inches (12.7 cm) and have toothed margins. Flowers are small and yellow and produce spined 2-seeded burrs. In addition to seeds it can also reproduce via its widely spreading roots.[14][7]

References

  1. ^ "NatureServe Explorer".
  2. ^ The Plant List Ambrosia tomentosa Nutt.
  3. ^ Eastern Colorado Wildflowers, Ambrosia tomentosa (Skeletonleaf Burr Ragweed or Skeletonleaf Bursage)
  4. ^ Center for Invasive Species and Ecosystem Health, skeletonleaf bursage Ambrosia tomentosa Nutt.
  5. ^ "Oregon State University, StreamWebs, Skeletonleaf bursage (Ambrosia tomentosa)". Archived from the original on 2016-03-04. Retrieved 2015-05-17.
  6. ^ a b "Ambrosia tomentosa". Germplasm Resources Information Network. Agricultural Research Service, United States Department of Agriculture. Retrieved 2010-03-25.
  7. ^ a b Flora of North America Vol. 21 Page 17 Ambrosia tomentosa Nuttall, Gen. N. Amer. Pl. 2: 186. 1818.
  8. ^ United States Department of Agriculture plants profile accessed 2.14.2013
  9. ^ Biota of North America Program 2014 county distribution map
  10. ^ "Ambrosia tomentosa - Colorado Wildflowers". www.easterncoloradowildflowers.com. Retrieved 2021-04-23.
  11. ^ University of Wyoming, Department of Ecosystem Science & Management, Skeletonleaf Bursage, Ambrosia tomentosa
  12. ^ "Washington State Noxious Weed Control Board, skeleton-leaf bursage, Ambrosia tomentosa". Archived from the original on 2015-03-16. Retrieved 2015-05-17.
  13. ^ "Skeleton-Leaf Burr-Ragweed (Ambrosia tomentosa) Species Details and Allergy Info". www.pollenlibrary.com. Retrieved 2021-04-23.
  14. ^ Idaho's Noxious Weeds – Skeletonleaf Bursage Retrieved 2010-03-25.

External links

Media related to Ambrosia tomentosa at Wikimedia Commons