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{{Taxobox
| color = lightgreen
| name = ''Caulophyllum thalictroides''
| image = Caulophyllum_thalictroides-BB.jpg
| image_width = 240px
| image_caption = ''Caulophyllum thalictroides'' from Britton & Brown 1913
| regnum = [[Plant]]ae
| divisio = [[Flowering plant|Magnoliophyta]]
| classis = [[Magnoliopsida]]
| ordo = [[Ranunculales]]
| familia = [[Berberidaceae]]
| genus = ''[[Caulophyllum]]''
| species = '''''C. thalictroides'''''
| binomial = ''Caulophyllum thalictroides''
| binomial_authority = ([[Carolus Linnaeus|L.]]) Michaux
}}
'''Blue cohosh''' ('''''[[Caulophyllum]] thalictroides'''''), also called '''squaw root''' (which often is used for the parasitic flowering plant, ''[[Conopholis americana]]'') or '''papoose root''', is a [[flowering plant]] in the [[Berberidaceae]] ([[Berberis|barberry]]) family. It is a medium-tall [[Perennial plant|perennial]] with blue berry-like fruits and bluish-green foliage.
It was used as a [[Herbalism|medicinal herb]] by [[Native Americans in the United States|American Indians]], and can also be used as a [[dietary]] supplement that can induce [[Childbirth|labor]], regulate menstrual flow, suppress menstruation, and ease the pain and difficulty that accompany childbirth. This herb should not be taken during pregnancy.
From the single stalk rising from the ground, there is a single, large, three-branched leaf plus a fruiting stalk. The bluish-green leaflets are tulip-shaped, entire<!--What does "entire" mean in this context?--> at the base but serrate at the tip. Its species name, ''thalictroides'', comes from the similarity between the large highly divided, multiple-compound leaves of Meadow-rue (''[[Thalictrum]]'') and those of Blue Cohosh.
It is found in hardwood forest of the eastern [[United States]], and favors moist coves and hillsides, generally in shady locations, in rich soil.
[[Cimicifuga racemosa|Black Cohosh]] (''[[Cimicifuga racemosa]]''), although similarly named, is actually a plant in a separate genus.
Blue Cohosh grows in eastern [[North America]], from [[Manitoba]] and [[Oklahoma]] east to the [[Atlantic Ocean]].
==See also==
*''[[Caulophyllum]]''
==External links==
*[http://plants.usda.gov/java/profile?symbol=CATH2 USDA page for ''Caulophyllum thalictroides'']
*[http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=233500331 Blue Cohosh page] from eFloras site
[[Category:Herbs]]
[[Category:Medicinal plants]]
[[Category:Flora of Canada|Cohosh, Blue]]
[[Category:Flora of Eastern United States]]
| color = lightgreen
| name = ''Caulophyllum thalictroides''
| image = Caulophyllum_thalictroides-BB.jpg
| image_width = 240px
| image_caption = ''Caulophyllum thalictroides'' from Britton & Brown 1913
| regnum = [[Plant]]ae
| divisio = [[Flowering plant|Magnoliophyta]]
| classis = [[Magnoliopsida]]
| ordo = [[Ranunculales]]
| familia = [[Berberidaceae]]
| genus = ''[[Caulophyllum]]''
| species = '''''C. thalictroides'''''
| binomial = ''Caulophyllum thalictroides''
| binomial_authority = ([[Carolus Linnaeus|L.]]) Michaux
}}
'''Blue cohosh''' ('''''[[Caulophyllum]] thalictroides'''''), also called '''squaw root''' (which often is used for the parasitic flowering plant, ''[[Conopholis americana]]'') or '''papoose root''', is a [[flowering plant]] in the [[Berberidaceae]] ([[Berberis|barberry]]) family. It is a medium-tall [[Perennial plant|perennial]] with blue berry-like fruits and bluish-green foliage.
It was used as a [[Herbalism|medicinal herb]] by [[Native Americans in the United States|American Indians]], and can also be used as a [[dietary]] supplement that can induce [[Childbirth|labor]], regulate menstrual flow, suppress menstruation, and ease the pain and difficulty that accompany childbirth. This herb should not be taken during pregnancy.
From the single stalk rising from the ground, there is a single, large, three-branched leaf plus a fruiting stalk. The bluish-green leaflets are tulip-shaped, entire<!--What does "entire" mean in this context?--> at the base but serrate at the tip. Its species name, ''thalictroides'', comes from the similarity between the large highly divided, multiple-compound leaves of Meadow-rue (''[[Thalictrum]]'') and those of Blue Cohosh.
It is found in hardwood forest of the eastern [[United States]], and favors moist coves and hillsides, generally in shady locations, in rich soil.
[[Cimicifuga racemosa|Black Cohosh]] (''[[Cimicifuga racemosa]]''), although similarly named, is actually a plant in a separate genus.
Blue Cohosh grows in eastern [[North America]], from [[Manitoba]] and [[Oklahoma]] east to the [[Atlantic Ocean]].
==See also==
*''[[Caulophyllum]]''
==External links==
*[http://plants.usda.gov/java/profile?symbol=CATH2 USDA page for ''Caulophyllum thalictroides'']
*[http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=233500331 Blue Cohosh page] from eFloras site
[[Category:Herbs]]
[[Category:Medicinal plants]]
[[Category:Flora of Canada|Cohosh, Blue]]
[[Category:Flora of Eastern United States]]
