Greasewood
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Greasewood (Sarcobatus) is a genus of one or two species of flowering plants. Traditionally it has been treated in the family Chenopodiaceae, but the APG II system, of 2003, places it in the family Sarcobataceae.
The plants are deciduous shrubs growing to 0.5-3 m tall with spiny branches and succulent leaves, 10-40 mm long and 1-2 mm broad.
Their area of distribution is western North America, from southeastern British Columbia and southwest Alberta, Canada, south through the drier regions of the United States (east to North Dakota and west Texas, west to central Washington and eastern California) to northern Mexico (Coahuila).
- Species
The two species are not accepted as distinct by all authors; see the Flora of North America for further details.
- Sarcobatus baileyi Coville (syn. Sarcobatus vermiculatus var. baileyi (Coville) Jepson). Nevada, endemic. Low shrub 0.5-1 m tall. Leaves hairy, 10-16 mm long.
- Sarcobatus vermiculatus (Hook.) Torr.. Throughout the range of the genus. Shrub 1-5 m tall. Leaves hairless or only slightly hairy, 15-40 mm long.
The name Sarcobatus comes from Greek sarko (meaning flesh) and batos (meaning bramble), referring to the species' spiny branches and succulent leaves.
Although it can be grazed by animals that are adapted, grazing of greasewood by sheep and cattle can result in oxalate poisoning resulting in kidney failure [1]. The active agent can be either sodium oxalate or potassium oxalate. Sheep are the most vulnerable.
