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{{Taxobox
| name = Rattlesnake Weed
| image = Chamaesyce albomarginata 4.jpg
| image_width = 240px
| regnum = [[Plant]]ae
| divisio = [[Magnoliophyta]]
| classis = [[Magnoliopsida]]
| subclassis = [[Rosidae]]
| unranked_ordo = [[Eurosids I]]
| ordo = [[Ericales]]
| ordo = [[Malpighiales]]
| familia = [[Euphorbiaceae]]
| subfamilia = [[Euphorbioideae]]
| tribus = [[Euphorbieae]]
| subtribus = [[Euphorbiinae]]
| genus = ''[[Euphorbia]]''
| species = '''''E. albomarginata'''''
| binomial = ''Euphorbia albomarginata''
| binomial_authority = [[John Torrey|Torr.]] & [[Samuel Frederick Gray|Gray]]{{Verify source|date=November 2007}}<!-- "Torr. & A.Gray"? -->
| synonyms =
''Chamaesyce albomarginata''
}}
The '''Rattlesnake Weed''' ('''''Euphorbia albomarginata''''') is a low-growing member of the [[spurge]] family native to desert and chaparral habitats of southwestern [[North America]], from southern [[California]] to [[Texas]]. This species is also known under the name of '''Whitemargin Sandmat'''.
Rattlesnake Weed is a common ground cover plant, usually growing less than 1/2 in (13 mm) high, with individual plants covering about a square foot, often growing closely and forming mats of vegetation. The flowers of this plant are tiny and edged in white, with a purplish center. Rattlesnake Weed can be found in open fields, on roadsides, or anywhere where the ground is disturbed, including ornamental gravels in suburban yards, where it is considered as a weed.
The name is derived from its former use as a folk remedy for snakebites (as a poultice or brewed as a tea) - however, this species is not proven to be medically effective in treating rattlesnake venom. Like most spurges, Rattlesnake Weed secretes an acrid, milky sap containing [[alkaloid]]s poisonous to humans, with [[emetic]] and [[cathartic]] properties that may be misconstrued as curative.
==Other Uses for the Name==
This name may also refer to other plants which have been used in folk medicine for the treatment of snakebites.
* Rattlesnake Weed is an alternate name for
** [[Florida Betony]] (''Stachys floridana''), a member of the [[Lamiaceae|mint]] family
** [[American Wild Carrot]] (''Daucus pusillus''), a close relative of the [[wild carrot]]
* The similarly named [[Rattlesnakeweed]] (''Hieracum venosum'') is a member of the [[aster]] family
==References==
* {{cite book | author=[[Neltje Blanchan|Blanchan, Neltje]] | title=[[Wild Flowers: An Aid to Knowledge of our Wild Flowers and their Insect Visitors]] | year=[[2002]] | publisher=[[Project Gutenberg|Project Gutenberg Literary Archive Foundation]]}}
* {{cite book | author=[[Neltje Blanchan|Blanchan, Neltje]] | title=[[Wild Flowers Worth Knowing]] | year=[[2005]] | publisher=[[Project Gutenberg|Project Gutenberg Literary Archive Foundation]]}}
==External links==
{{commons|Chamaesyce albomarginata}}
* [http://www.naturesongs.com/vvplants/rattlesnakeweed.html Rattlesnake Weed] profile
* [http://www.enature.com/flashcard/show_flash_card.asp?recordNumber=WF0899 Rattlesnake Weed] at eNature
[[Category:Euphorbia]]
[[Category:Flora of the United States]]
| name = Rattlesnake Weed
| image = Chamaesyce albomarginata 4.jpg
| image_width = 240px
| regnum = [[Plant]]ae
| divisio = [[Magnoliophyta]]
| classis = [[Magnoliopsida]]
| subclassis = [[Rosidae]]
| unranked_ordo = [[Eurosids I]]
| ordo = [[Ericales]]
| ordo = [[Malpighiales]]
| familia = [[Euphorbiaceae]]
| subfamilia = [[Euphorbioideae]]
| tribus = [[Euphorbieae]]
| subtribus = [[Euphorbiinae]]
| genus = ''[[Euphorbia]]''
| species = '''''E. albomarginata'''''
| binomial = ''Euphorbia albomarginata''
| binomial_authority = [[John Torrey|Torr.]] & [[Samuel Frederick Gray|Gray]]{{Verify source|date=November 2007}}<!-- "Torr. & A.Gray"? -->
| synonyms =
''Chamaesyce albomarginata''
}}
The '''Rattlesnake Weed''' ('''''Euphorbia albomarginata''''') is a low-growing member of the [[spurge]] family native to desert and chaparral habitats of southwestern [[North America]], from southern [[California]] to [[Texas]]. This species is also known under the name of '''Whitemargin Sandmat'''.
Rattlesnake Weed is a common ground cover plant, usually growing less than 1/2 in (13 mm) high, with individual plants covering about a square foot, often growing closely and forming mats of vegetation. The flowers of this plant are tiny and edged in white, with a purplish center. Rattlesnake Weed can be found in open fields, on roadsides, or anywhere where the ground is disturbed, including ornamental gravels in suburban yards, where it is considered as a weed.
The name is derived from its former use as a folk remedy for snakebites (as a poultice or brewed as a tea) - however, this species is not proven to be medically effective in treating rattlesnake venom. Like most spurges, Rattlesnake Weed secretes an acrid, milky sap containing [[alkaloid]]s poisonous to humans, with [[emetic]] and [[cathartic]] properties that may be misconstrued as curative.
==Other Uses for the Name==
This name may also refer to other plants which have been used in folk medicine for the treatment of snakebites.
* Rattlesnake Weed is an alternate name for
** [[Florida Betony]] (''Stachys floridana''), a member of the [[Lamiaceae|mint]] family
** [[American Wild Carrot]] (''Daucus pusillus''), a close relative of the [[wild carrot]]
* The similarly named [[Rattlesnakeweed]] (''Hieracum venosum'') is a member of the [[aster]] family
==References==
* {{cite book | author=[[Neltje Blanchan|Blanchan, Neltje]] | title=[[Wild Flowers: An Aid to Knowledge of our Wild Flowers and their Insect Visitors]] | year=[[2002]] | publisher=[[Project Gutenberg|Project Gutenberg Literary Archive Foundation]]}}
* {{cite book | author=[[Neltje Blanchan|Blanchan, Neltje]] | title=[[Wild Flowers Worth Knowing]] | year=[[2005]] | publisher=[[Project Gutenberg|Project Gutenberg Literary Archive Foundation]]}}
==External links==
{{commons|Chamaesyce albomarginata}}
* [http://www.naturesongs.com/vvplants/rattlesnakeweed.html Rattlesnake Weed] profile
* [http://www.enature.com/flashcard/show_flash_card.asp?recordNumber=WF0899 Rattlesnake Weed] at eNature
[[Category:Euphorbia]]
[[Category:Flora of the United States]]
