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Astragalus racemosus Pursh
Astragalus raddei Basil.
Astragalus radicans Hornem.
Astragalus rafaelensis M.E.Jones
Astragalus rahiminejadii Ranjbar
Astragalus ramitensis Rassulova
Astragalus raphaelis G.Ferro
Astragalus raphiodontus Boiss.
Astragalus rariflorus Ledeb.
Astragalus rarissimus Popov
Astragalus rashedmohasselii Nasseh
Astragalus rassoulii Podlech
Astragalus rassulovae Podlech
Astragalus raswendicus Hausskn. & Bornm.
Astragalus rattanii A.Gray
Astragalus ravenii Barneby
Astragalus rawianus C.C.Towns.
Astragalus rawlinsianus Aitch. & Baker
Astragalus razensis Nasseh & Joharchi
Astragalus recognitus Fisch.
Astragalus reconditus Podlech & Maassoumi
Astragalus recurvatus Podlech
Astragalus recurvus Greene
Astragalus reduncus Pall.
Astragalus reesei Maire
Astragalus reflexistipulus Miq.
Astragalus reflexus Torr. & A.Gray
Astragalus refractus C.A.Mey.
Astragalus regestus Maassoumi
Astragalus regiomontanus Barneby
Astragalus reichei Speg.
Astragalus reinii Ball
Astragalus remanens Nabiev
Astragalus remotiflorus Boiss.
Astragalus remotijugus Boiss. & Hohen.
Astragalus remotispicatus Bagheri & Maassoumi
Astragalus remotus (M.E.Jones) Barneby
Astragalus renzianus Podlech
Astragalus renzii Hub.-Mor.
Astragalus repentinus Ekící & Podlech
Astragalus reshadianus Podlech
Astragalus retamocarpus Boiss. & Hohen.
Astragalus reticulatovenosus Maassoumi & Podlech
Astragalus reticulatus M.Bieb.
Astragalus retusifoliatus Y.C.Ho
Astragalus reuterianus Boiss.
Astragalus reventiformis (Rydb.) Barneby
Astragalus reventus A.Gray
Astragalus reverdattoanus Sumnev.
Astragalus rhabdophorus Bornm.
Astragalus rhacodes Bunge
Astragalus rhizanthus Benth.
Astragalus rhizocephalus Baker
Astragalus rhodochrous Boiss. & Hausskn.
Astragalus rhododendrophilus Podlech & L.R.Xu
Astragalus rhodosemius Boiss. & Hausskn.
Astragalus richii A.Gray
Astragalus rigidulus Benth. ex Bunge
Astragalus rijabensis Maassoumi, Mozaff. & Bagheri
Astragalus rimarum Bornm.
Astragalus riouxii Rech.f.
Astragalus riparius Barneby
Astragalus ripleyi Barneby
Astragalus robbinsii (Oakes) A.Gray
Astragalus robustus Bunge
Astragalus roemeri Simonk.
Astragalus roessleri Podlech
Astragalus rollovii Grossh.
Astragalus romasanus Ulbr.
Astragalus rosae Kirchhoff
Astragalus roschanicus B.Fedtsch.
Astragalus rosellus Širj. & Rech.f.
Astragalus roseocalycinus V.A.Matthews
Astragalus roseus Ledeb.
Astragalus rostratus C.A.Mey.
Astragalus rotundus Gontsch.
Astragalus rousseanus Boiss.
Astragalus rubellus Gontsch.
Astragalus rubescens Kovalevsk. & Vved.
Astragalus rubicalyx Maassoumi
Astragalus rubicundus Podlech & Sytin
Astragalus rubriflorus Bunge
Astragalus rubrifolius V.V.Nikitin ex Kovalevsk.
Astragalus rubrigalli Popov
Astragalus rubriphysa Maassoumi & Khorrami
Astragalus rubrivenosus Gontsch.
Astragalus rubrocalycinus Maassoumi & Podlech
Astragalus rubrolineatus Širj. & Rech.f.
Astragalus rubromarginatus Czerniak.
Astragalus rubrostriatus Bunge
Astragalus rubtzovii Boriss.
Astragalus rudimentus Maassoumi
Astragalus rudolffii N.Ulziykh.
Astragalus rufescens Freyn & Bornm.
Astragalus ruiz-lealii I.M.Johnst.
Astragalus rumelicus Bunge
Astragalus rumpens Meffert
Astragalus runemarkii Maassoumi & Podlech
Astragalus rupertii Villarreal & M.A.Carranza
Astragalus rupifragiformis Popov
Astragalus rupifragus Pall.
Astragalus rusbyi Greene
Astragalus ruscifolius Boiss.
Astragalus russanovii F.O.Khass., Sarybaeva & Esankulov
Astragalus russellii Banks & Sol.
Astragalus rytidocarpus Ledeb.
Astragalus rytyensis Stepants.
Astragalus rzaevii Grossh.