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, 18:18, 16 October 2007
{{Taxobox
| color = lightgreen
| name = ''Psoralea esculenta''
| regnum = [[Plant]]ae
| divisio = [[Magnoliophyta]]
| ordo = [[Magnoliopsida]]
| classis = [[Fabales]]
| familia = [[Fabaceae]]
| genus = ''[[Psoralea]]''
| species = '''''P. esculenta''
| binomial = ''Psoralea esculenta''
| binomial_authority = Pursh.
}}
[[Image:PrairieTurnip.JPG|thumb|Photo of Prairie Turnip taken at the McKnight Prairie near Northfield, MN. Photo by John McDaris.]]
'''''Psoralea esculenta''''' is an [[herb]]aceous [[perennial plant]] native to [[prairie]]s and dry [[woodland]]s of central [[North America]], which bears a [[starch]]y [[tuberous root]] edible as a [[root vegetable]]. English names for the plant include '''tipsin''', '''teepsenee''', '''breadroot''', '''breadroot scurf pea''', '''pomme blanche''', and '''prairie turnip'''.
Several densely-haired [[plant stem|stem]]s emerge from the ground and reach up to 30 cm, bearing palmately compound [[leaf|leaves]] divided into five leaflets. Summer produces abundant blue or purple [[flower]]s in terminal clusters 5 to 10 cm long, leading to flattened, slender-tipped pods.
The plant grows from one or more sturdy brown roots which form rounded tuberous bodies about 7 to 10 cm below the surface, each 4 to 10 cm long. These can be eaten raw, dried, or cooked. The raw root is moderately sweet and tastes like the [[turnip (brassica rapa)|turnip]]. The dried root can be ground into a [[flour]].
Abundant, palatable, and nutritious, the root was once a wild-gathered staple of [[Native Americans in the United States|Native Americans]] and early [[Europe]]an explorers. Its characteristics make it an obvious candidate for possible [[domestication]].
== External links ==
* [http://www.npwrc.usgs.gov/resource/plants/wildflwr/species/psorescu.htm Information and habit photo]
[[Category:Root vegetables]]
[[Category:Flora of Montana]]
[[Category:Faboideae]]
[[Category:Edible legumes]]