Oxytropis lambertii

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Oxytropis lambertii
Oxytropis lambertii.jpg
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Faboideae
Tribe: Galegeae
Genus: Oxytropis
Species: O. lambertii
Binomial name
Oxytropis lambertii
Pursh

Oxytropis lambertii is a species of flowering plant in the legume family known by several common names, including purple locoweed, woolly locoweed, and Lambert crazyweed.

Distribution[edit]

It is native to grasslands in the Canadian Prairie of central Canada and in the mid-west and Great Plains of the United States.[1]

Description[edit]

Oxytropis lambertii is a perennial herb producing a patch of basal leaves around the root crown, and several showy erect inflorescences. The leaf is compound with several silvery-green leaflets. The inflorescence produces several flowers, each borne in a tubular purple or pinkish calyx of sepals covered thinly in silver hairs. The pealike flower corolla is reddish or bluish purple with a lighter patch at the base of the banner. The fruit is a cylindrical legume pod.

Toxic[edit]

The Oxytropis lambertii plant is one of the locoweeds most frequently implicated in livestock poisoning.[2] The toxin is called swainsonine. Research suggests that the plant itself may not be toxic, but becomes toxic when inhabited by endophytic fungi of the genus Embellisia, which produce swainsonine.[3]

References[edit]

  1. ^ USGS. Native Wildflowers of the North Dakota Grasslands
  2. ^ Ralphs, M. H., et al. (2002). Distribution of locoweed toxin swainsonine in populations of Oxytropis lambertii. J Chem Ecol 28:4 701-7.
  3. ^ McLain-Romero, J., et al. (2004). The toxicosis of Embellisia fungi from locoweed (Oxytropis lambertii) is similar to locoweed toxicosis in rats. J Anim Sci 82 2169-74.

See also[edit]

External links[edit]