Ambrosia tomentosa

Ambrosia tomentosa
Skeletonleaf bur ragweed
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Asterales
Family: Asteraceae
Genus: Ambrosia
Species: A. tomentosa
Binomial name
Ambrosia tomentosa
Nutt.
Synonyms[1]
  • Franseria discolor Nutt.
  • Franseria exigua Wawra
  • Gaertneria discolor (Nutt.) Kuntze
  • Gaertneria tomentosa (Nutt.) Heller
  • Gaertneria tomentosa (Nutt.) A.Nelson
  • Xanthidium discolor (Nutt.) Delpino
  • Franseria tomentosa (Nutt.) A.Nelson, not A. Gray

Ambrosia tomentosa, the skeletonleaf bur ragweed,[2] silverleaf povertyweed, or skeleton-leaf bursage,[3][4][5] is a North American species of perennial plants in the (aster family).[6]

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. [7][8]

It is considered a noxious weed in several states.[5][9][10]

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.[11][6]

References

  1. ↑ The Plant List Ambrosia tomentosa Nutt.
  2. ↑ Easern Colorado Wildflowers, Ambrosia tomentosa (Skeletonleaf Burr Ragweed or Skeletonleaf Bursage)
  3. ↑ Center for Invasive Species and Ecosystem Health, skeletonleaf bursage Ambrosia tomentosa Nutt.
  4. ↑ Oregon State University, StreamWebs, Skeletonleaf bursage (Ambrosia tomentosa)
  5. 1 2 Germplasm Resources Information Network Retrieved 2010-03-25.
  6. 1 2 Flora of North America Vol. 21 Page 17 Ambrosia tomentosa Nuttall, Gen. N. Amer. Pl. 2: 186. 1818.
  7. ↑ United States Department of Agriculture plants profile accessed 2.14.2013
  8. ↑ Biota of North America Program 2014 county distribution map
  9. ↑ University of Wyoming, Department of Ecosystem Science & Management, Skeletonleaf Bursage, Ambrosia tomentosa
  10. ↑ Washington State Noxious Weed Control Board, skeleton-leaf bursage, Ambrosia tomentosa
  11. ↑ Idaho's Noxious Weeds – Skeletonleaf Bursage Retrieved 2010-03-25.

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