Ambrosia grayi

Ambrosia grayi
Scientific classification
Kingdom:Plantae
Clade:Angiosperms
Clade:Eudicots
Clade:Asterids
Order:Asterales
Family:Asteraceae
Genus:Ambrosia
Species: A. grayi
Binomial name
Ambrosia grayi
(A.Nelson) Shinners
Synonyms[1][2]
  • Franseria grayi A.Nelson
  • Franseria tomentosa A.Gray 1849, not Ambrosia tomentosa Nutt. 1818
  • Gaertneria grayi A.Nelson
  • Gaertneria tomentosa (A.Gray) Kuntze

Ambrosia grayi, the woollyleaf bur ragweed,[3] is a North American species of plants in the sunflower family. It is native to the west-central part of the Great Plains of the United States, in the states of Nebraska, Kansas, Colorado, New Mexico, Oklahoma, and Texas.[4]

Ambrosia grayi is a perennial herb up to 30 cm (12 inches) tall. Leaves are elliptical or egg-shaped. Flower heads are small and inconspicuous, as the plant is wind-pollinated. The heads develop into spiny burs as the seeds ripen.[2]

References

  1. ↑ The Plant List Ambrosia grayi (A.Nelson) Shinners
  2. 1 2 Flora of North America Vol. 21 Page 17 Ambrosia grayi (A. Nelson) Shinners, Field & Lab. 17: 174. 1949
  3. ↑ "Ambrosia grayi". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 18 May 2015.
  4. ↑ Biota of North America Program 2014 county distribution map


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