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{{Taxobox
| color = lightgreen
| name = ''Ononis''
| image = Koeh-230.jpg
| image_width = 250px
| image_caption = Ononis spinosa
| regnum = [[Plant]]ae
| divisio = [[Flowering plant|Magnoliophyta]]
| classis = [[Magnoliopsida]]
| ordo = [[Fabales]]
| familia = [[Fabaceae]]
| subfamilia = [[Faboideae]]
| tribus = [[Trifolieae]]
| genus = '''''Ononis'''''
| subdivision_ranks = Species
| subdivision =
111 species and subspecies, see text
</td></tr><tr><td>Ref: [http://www.ildis.org ILDIS Version 6.05]
}}

'''''Ononis''''' is a large [[genus]] of [[perennial plant|perennial]] [[herb]]s and shrubs from the [[legume]] family [[Fabaceae]]. The members of this genus are often called '''restharrows''' as some species are arable weeds whose tough stems would stop the [[harrow (tool)|harrow]]. They are natively distributed in [[Europe]].

In [[herbalism]] restharrow is used to treat bladder and kidney problems and water retention.

The active ingredients in restharrow are [[essential oils]], [[flavonoid]]-[[glycosides]], and [[tannins]].

Restharrows are used as food plants by the [[larva]]e of some [[Lepidoptera]] species including [[Grey Pug]] and ''[[Coleophora|Coleophora ononidella]]'' (feeds exclusively on ''O. arvensis'').

== Species of ''Ononis'' ==
* ''O. alopecuroides'', Foxtail Restharrow
* ''O. arvensis'', Field Restharrow
* ''O. natrix'', Large Yellow Restharrow
* ''O. pusilla''
* ''O. reclinata'', Small Restharrow
* ''[[Ononis repens|O. repens]]'', Common Restharrow
* ''[[Ononis rotundifolia|O. rotundifolia]]''
* ''O. speciosa''
* [[Ononis spinosa|''O. spinosa'']], Spiny Restharrow
[[Image:Ononis natrix0.jpg|thumb|left|225px|''Ononis natrix'', flowers and foliage]]

== External links ==
{{commons|Ononis|Ononis}}
*[http://www.armeniapedia.org/index.php?title=Ononis_arvensis Medicinal uses of O. arvensis in Armenia]

{{Faboideae-stub}}
[[Category:Faboideae]]
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