Restharrow

Foodplant / sap sucker
Aethus flavicornis sucks sap of Ononis

Foodplant / feeds on
larva of Apion ononicola feeds on Ononis

Foodplant / feeds on
larva of Apion ononis feeds on Ononis

Foodplant / sap sucker
nymph of Berytinus clavipes sucks sap of Ononis

Foodplant / sap sucker
adult of Berytinus minor sucks sap of Ononis
Other: major host/prey

Foodplant / sap sucker
Corizus hyoscyami sucks sap of Ononis
Remarks: Other: uncertain

Foodplant / saprobe
sometimes clumped apothecium of Crocicreas cyathoideum var. cacaliae is saprobic on dead stem of Ononis
Remarks: season: 7

Plant / associate
adult of Dicyphus annulatus is associated with live Ononis

Foodplant / parasite
cleistothecium of Erysiphe pisi var. cruchetiana parasitises live Ononis

Foodplant / sap sucker
nymph of Gampsocoris punctipes sucks sap of glandular hairs of Ononis

Foodplant / saprobe
apothecium of Hyalopeziza millepunctata is saprobic on decaying stem of Ononis
Remarks: season: 5-10

In Great Britain and/or Ireland:
Foodplant / open feeder
Hypera ononidis grazes on leaf of Ononis

Foodplant / saprobe
superficial, gregarious perithecium of Lasiosphaeria caudata is saprobic on dead stem of Ononis
Remarks: season: 7-8

Foodplant / saprobe
immersed or semi-immersed pseudothecium of Lophiostoma caulium is saprobic on dead stem of Ononis
Remarks: season: 1-12

Foodplant / sap sucker
nymph of Macrotylus paykulli sucks sap of Ononis

Foodplant / feeds on
female of Odontothrips loti feeds on live Ononis
Remarks: season: 6-9

Foodplant / saprobe
pseudothecium of Ophiobolus fruticum is saprobic on dead stem of Ononis
Remarks: season: 7

Foodplant / parasite
sporangium of Peronospora trifoliorum parasitises live Ononis

Foodplant / saprobe
perithecium of Phomatospora dinemasporium is saprobic on dead stem of Ononis
Remarks: season: 6-7

Foodplant / saprobe
colony of Stemphylium dematiaceous anamorph of Pleospora herbarum is saprobic on dead stem of Ononis

Foodplant / saprobe
erumpent apothecium of Pyrenopeziza compressula is saprobic on dead stem of Ononis

Foodplant / feeds on
larva of Sitona gemellatus feeds on Ononis

Ononis is a large genus of perennial herbs and shrubs from the legume family Fabaceae. The members of this genus are often called restharrows as some species grow as weeds on arable lands whose tough stems would stop the 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 larvae of some Lepidoptera species including the grey pug and Coleophora ononidella (which feeds exclusively on O. arvensis).