Interesting question. I'm following

Dear Abdenour,

It is difficult to identify a plant without flowers and fruits. So please post flowers/fruits for quick and correct identification of the plant.

Dear Abdenour,

It may be Pergularia tomentosa of family Apocynaceae.

Good luck

Thank you very much dear Arvind,

same morphology (pods, leaves, stem) as Pergularia tomentosa.

Abdenour

Dear Abdenour,

Please follow the below given link for detail information on Pergularia tomentosa L.

http://uses.plantnet-project.org/en/Pergularia_tomentosa_(PROTA)

Good luck

Dear Abdenour ,

Yes, think Pergularia tomentosa of family Apocynaceae.

Dear Abdenour,

By their fruits ye shall know them. Where is this beautiful desert plant growing?

Dear Amy,

In Algeria. I want to try some germination test. If you want, we can work together.

Abdenour

Have you checked the Flora of Algeria?

@ Amy Eisenberg

Pergularia tomentosa L. of family Apocynaceae (= Asclepiadaceae) is a common plant species in flora of Algeria. Please read the attached publications.

http://apps.kew.org/herbcat/getHomePageResults.do?homePageSearchText=Pergularia+tomentosa

http://www.theplantlist.org/tpl1.1/record/kew-2404074

http://epic.kew.org/searchepic/detailquery.do;jsessionid=309B12F3332C48B8FCFECE8048370D4F?requiredPage=1&scientificName=Pergularia+tomentosa&datasources=ipni&datasources=mc&datasources=kr&datasources=ebbd&datasources=libcat&datasources=pmb&datasources=herbcat&datasources=ecbot&datasources=livcoll&datasources=sid&datasources=sepasal&datasources=efz&categories=names&categories=bibl&categories=colln&categories=taxon&categories=flora&detailDatasource=ipni

Thank you all of you for your consideration and answers

Cher Abdennour,

ça ressemble beauxoup à Pergularia tomentosa (Asclepiadaceae) une espèce que je connais des endroits un peu rudéralisés (abords des reposoirs de troupeaux dans les oueds) des déserts nord-africains,

bonne journée

Arne