- Astragalus aboriginum
- Astragalus accidens, Rogue River milkvetch
- Astragalus accumbens
- Astragalus ackermanii, Ackermans milkvetch
- Astragalus acutirostris, Sharpkeel milkvetch
- Astragalus adanus, Boise milkvetch
- Astragalus adsurgens, Standing Milkvetch
- Astragalus aequalis
- Astragalus agnicidis
- Astragalus agnicidus, Humboldt County milkvetch
- Astragalus agninus
- Astragalus agrestis, Purple milkvetch
- Astragalus albens, Cushenbury milkvetch
- Astragalus albulus
- Astragalus allochrous, Halfmoon milkvetch
- Astragalus alpinus, Alpine Milk-vetch
- Astragalus altus
- Astragalus alvordensis, Alvord milkvetch
- Astragalus amblytropis, Challis milkvetch
- Astragalus americanus, American milkvetch
- Astragalus amnis-amissi, Custer milkvetch
- Astragalus amphioxys, Crescent milkvetch
- Astragalus ampullarius, Gumbo milkvetch
- Astragalus andersonii, Andersons milkvetch
- Astragalus anemophilus
- Astragalus anisus
- Astragalus anserinus, Goose Creek milkvetch
- Astragalus antisellii
- Astragalus anxius, Troubled milkvetch
- Astragalus applegaitei
- Astragalus applegatei, Applegates milkvetch
- Astragalus aquilonius
- Astragalus araneosus
- Astragalus aretioides, Cushion milkvetch
- Astragalus argophyllus, Silverleaf milkvetch
- Astragalus aridus, Annual desert milkvetch
- Astragalus arizonicus, Arizona milkvetch
- Astragalus arrectus, Palouse milkvetch
- Astragalus arthu-schottii
- Astragalus arthurii, Waha milkvetch
- Astragalus asclepiadoides, Milkweed milkvetch
- Astragalus asymetricus
- Astragalus asymmetricus, San Joaquin milkvetch
- Astragalus atratus, Mourning milkvetch
- Astragalus atropubescens, Hangingpod milkvetch
- Astragalus atwoodii
- Astragalus austinae
- Astragalus austiniae, Austins milkvetch
- Astragalus australis, Indian milkvetch
- Astragalus austrinus
- Astragalus barrii, Barrs milkvetch
- Astragalus beathii
- Astragalus beatleyae, Beatleys milkvetch
- Astragalus beckwithii, Beckwiths milkvetch
- Astragalus bernardinus, San Bernardino milkvetch
- Astragalus bibullatus, Limestone glade milkvetch
- Astragalus bicristatus, Twocrested milkvetch
- Astragalus bisulcatus, Twogrooved milkvetch
- Astragalus blakei
- Astragalus bodinii, Bodins milkvetch
- Astragalus boeticus
- Astragalus bolanderi, Bolanders milkvetch
- Astragalus bourgovii, Bourgovs milkvetch
- Astragalus brandegeei
- Astragalus brandegei, Brandegees Milkvetch
- Astragalus brauntonii, Brauntons milkvetch
- Astragalus brazoensis, Brazos milkvetch
- Astragalus brevidens
- Astragalus breweri, Brewers milkvetch
- Astragalus californicus, Klamath Basin milkvetch
- Astragalus callithrix, Callaway milkvetch
- Astragalus calycosus, Torreys milkvetch
- Astragalus camptopus, Bruneau milkvetch
- Astragalus canadensis, Canadian milkvetch
- Astragalus candelarius
- Astragalus caricinus, Buckwheat milkvetch
- Astragalus carolinianus
- Astragalus caryocarpus
- Astragalus casei, Cases milkvetch
- Astragalus castaneiformis, Chestnut milkvetch
- Astragalus castetteri
- Astragalus catalinensis
- Astragalus ceramicus, Painted milkvetch
- Astragalus cerussatus
- Astragalus chamaeleuce, Cicada milkvetch
- Astragalus chamaemeniscus, Ground-crescent milkvetch
- Astragalus chinensis, Chinese milkvetch
- Astragalus chloodes, Grass milkvetch
- Astragalus chuskanus, San Juan milkvetch
- Astragalus cibarius, Browse milkvetch
- Astragalus cicer, Chick-pea Milk-vetch
- Astragalus cimae, Cima milkvetch
- Astragalus clarianus, Napa milkvetch
- Astragalus clevelandii, Clevelands milkvetch
- Astragalus cobrensis
- Astragalus coccineus, Scarlet milkvetch
- Astragalus collieri
- Astragalus collinus, Hillside milkvetch
- Astragalus coltonii, Coltons milkvetch
- Astragalus columbianus, Columbian milkvetch
- Astragalus concordius
- Astragalus congdonii, Congdons milkvetch
- Astragalus conjunctus, Idaho milkvetch
- Astragalus consobrinus, Bicknells milkvetch
- Astragalus contortuplicatus
- Astragalus convallarius, Lesser rushy milkvetch
- Astragalus cottonii, Cottons milkvetch
- Astragalus coulteri
- Astragalus crassicarpus, Groundplum milkvetch
- Astragalus cremnophylax, Sentry milkvetch
- Astragalus cronquistii, Cronquists milkvetch
- Astragalus crotalariae, Salton milkvetch
- Astragalus cruciatus
- Astragalus curtipes, Morro milkvetch
- Astragalus curvicarpus, Curvepod milkvetch
- Astragalus cusickii, Cusicks milkvetch
- Astragalus cyaneus
- Astragalus cymbioides
- Astragalus cymboides, Canoe milkvetch
- Astragalus danicus, Purple Milk-vetch
- Astragalus deanei, Deanes milkvetch
- Astragalus debequaeus, Debeque milkvetch
- Astragalus desereticus, Deseret milkvetch
- Astragalus desperatus, Rimrock milkvetch
- Astragalus deterior
- Astragalus detritalis, Debris milkvetch
- Astragalus diaphanus, Transparent milkvetch
- Astragalus didymocarpus, Dwarf white milkvetch
- Astragalus dispermus
- Astragalus distortus, Ozark milkvetch
- Astragalus diversifolius, Meadow milkvetch
- Astragalus douglasii, Douglass milkvetch
- Astragalus drabelliformis
- Astragalus drummondii, Drummonds milkvetch
- Astragalus duchesnensis, Duchesne milkvetch
- Astragalus eastwoodiae, Eastwoods milkvetch
- Astragalus egglestonii
- Astragalus emoryanus, Emorys milkvetch
- Astragalus endopterus
- Astragalus ensiformis, Pagumpa milkvetch
- Astragalus episcopus, Bishops milkvetch
- Astragalus equisolensis
- Astragalus eremeticus
- Astragalus eremiticus, Hermit milkvetch
- Astragalus ertterae, Walker Pass milkvetch
- Astragalus eucosmus, Elegant milkvetch
| - Astragalus eurekensis, Eureka milkvetch
- Astragalus eurylobus, Needle Mountain milkvetch
- Astragalus falcatus, Russian milkvetch
- Astragalus fastidius
- Astragalus feensis
- Astragalus fernaldii
- Astragalus filipes, Basalt milkvetch
- Astragalus flavus, Yellow milkvetch
- Astragalus flexuosus, Flexile milkvetch
- Astragalus fucatus, Hopi milkvetch
- Astragalus funereus, Funeral Mountain milkvetch
- Astragalus gambelianus, Gambels dwarf milkvetch
- Astragalus gaviotus
- Astragalus geyeri, Geyers milkvetch
- Astragalus gibbsii, Gibbs milkvetch
- Astragalus giganteus, Giant milkvetch
- Astragalus gilensis
- Astragalus gilmanii, Gilmans milkvetch
- Astragalus gilviflorus, Plains milkvetch
- Astragalus glareosus
- Astragalus glycyphyllos, Wild Liquorice
- Astragalus gracilis, Slender milkvetch
- Astragalus grayi
- Astragalus guatemalensis
- Astragalus gypsodes, Gypsum milkvetch
- Astragalus halei
- Astragalus hallii, Halls milkvetch
- Astragalus hamiltonii, Hamiltons milkvetch
- Astragalus hamosus, European Milkvetch
- Astragalus harbisonii
- Astragalus harringtonii
- Astragalus harrisonii, Harrisons milkvetch
- Astragalus hartwegii
- Astragalus harwoodii
- Astragalus hispidulus
- Astragalus holmgreniorum, Paradox milkvetch
- Astragalus hoodianus, Hood River milkvetch
- Astragalus hornii, Horns milkvetch
- Astragalus howellii, Howells milkvetch
- Astragalus humillimus
- Astragalus humistratus, Groundcover milkvetch
- Astragalus hyalinus, Summer milkvetch
- Astragalus hypoxylus
- Astragalus idriensis
- Astragalus idrietorum
- Astragalus impensus
- Astragalus incurvus
- Astragalus ineptus
- Astragalus inflexus, Bent milkvetch
- Astragalus insularis, Cedros milkvetch
- Astragalus inversus, Susanville milkvetch
- Astragalus inyoensis, Inyo milkvetch
- Astragalus iodanthus, Humboldt River milkvetch
- Astragalus iodopetalus
- Astragalus iselyi, Iselys milkvetch
- Astragalus isleyi
- Astragalus jaegerianus, Lane Mountain milkvetch
- Astragalus jejunus, Starveling milkvetch
- Astragalus jesupii
- Astragalus johannes-howellii
- Astragalus johannis-howellii, Long Valley milkvetch
- Astragalus jonesii
- Astragalus kentrophyta, Spiny milkvetch
- Astragalus kerrii
- Astragalus knightii, Knights milkvetch
- Astragalus lackschewitzii
- Astragalus laurentii
- Astragalus laxmanii
- Astragalus layneae, Widows milkvetch
- Astragalus lectulus
- Astragalus leibergii, Leibergs milkvetch
- Astragalus lemmonii, Lemmons milkvetch
- Astragalus lentiformis, Lens pod milkvetch
- Astragalus lentiginosus, Freckled milkvetch
- Astragalus leptaleus, Park milkvetch
- Astragalus leptocarpus, Rare loco milkvetch
- Astragalus leucolobus, Bear Valley milkvetch
- Astragalus leucopsis
- Astragalus limnocharis, Cedar Breaks milkvetch
- Astragalus lindheimeri, Lindheimers milkvetch
- Astragalus linifolius
- Astragalus loanus, Glenwood milkvetch
- Astragalus lonchocarpus, Rushy milkvetch
- Astragalus lotiflorus, Lotus milkvetch
- Astragalus lutosus, Dragon milkvetch
- Astragalus lyallii, Lyalls milkvetch
- Astragalus macounii
- Astragalus macrodon, Salinas milkvetch
- Astragalus magdalenae, Satiny milkvetch
- Astragalus malacoides
- Astragalus malacus, Shaggy milkvetch
- Astragalus megacarpus, Great bladdery milkvetch
- Astragalus mensarus
- Astragalus mexicanus
- Astragalus michauxii, Sandhills Milkvetch
- Astragalus micranthus
- Astragalus microcymbus
- Astragalus microcystis, Dwarf milkvetch
- Astragalus micromerius
- Astragalus miguelensis, San Miguel milkvetch
- Astragalus minthorniae, Minthorns milkvetch
- Astragalus misellus, Pauper milkvetch
- Astragalus miser, Timber milkvetch
- Astragalus missouriensis, Missouri milkvetch
- Astragalus moencoppensis, Moenkopi milkvetch
- Astragalus moenocoppensis
- Astragalus mohavensis, Mojave milkvetch
- Astragalus mojavensis
- Astragalus mokiacensis, Mokiak milkvetch
- Astragalus mollissimus, Woolly locoweed
- Astragalus molybdenus
- Astragalus monoensis, Mono milkvetch
- Astragalus montii
- Astragalus monumentalis, Monument Valley milkvetch
- Astragalus mortonii
- Astragalus mulfordiae, Mulfords milkvetch
- Astragalus musiniensis, Ferrons milkvetch
- Astragalus nankotaizanensis
- Astragalus naturitensis, Naturita milkvetch
- Astragalus neglectus, Coopers milkvetch
- Astragalus nelsonianus, Nelsons milkvetch
- Astragalus neomexicanus
- Astragalus nevinii, San Clemente Island milkvetch
- Astragalus newberryi, Newberrys milkvetch
- Astragalus nidularius, Birdnest milkvetch
- Astragalus nigricalycis
- Astragalus nokoensis
- Astragalus nothoxys, Sheep milkvetch
- Astragalus nothroxys
- Astragalus nudisiliquus, Cobblestone milkvetch
- Astragalus nutans, Providence Mountain milkvetch
- Astragalus nutriosensis
- Astragalus nuttallianus, Smallflowered milkvetch
- Astragalus nuttallii, Nuttalls milkvetch
- Astragalus nutzotinensis, Nutzotin milkvetch
- Astragalus nyensis
- Astragalus obcordatus, Florida milkvetch
- Astragalus obscurus, Arcane milkvetch
- Astragalus odoratus, Lesser Milk-vetch
- Astragalus oniciformis, Picabo milkvetch
- Astragalus oocalycis
- Astragalus oocarpus, Descanso milkvetch
- Astragalus oophorus, Egg milkvetch
- Astragalus orcuttianus
- Astragalus oreganus
- Astragalus osterhoutii
| - Astragalus owyheensis
- Astragalus oxyphysus, Mt Diablo milkvetch
- Astragalus pachypus, Thickpod milkvetch
- Astragalus palmeri, Palmers milkvetch
- Astragalus panamintensis, Panamint milkvetch
- Astragalus pardalinus, Panther milkvetch
- Astragalus parryi
- Astragalus pattersonii, Pattersons milkvetch
- Astragalus pauperculus, Depauperate milkvetch
- Astragalus paysonii, Paysons milkvetch
- Astragalus peckii, Pecks milkvetch
- Astragalus pectinatus
- Astragalus peirsonii
- Astragalus perianus, Rydbergs milkvetch
- Astragalus phoenix
- Astragalus pictiformis, Guadalupe milkvetch
- Astragalus pinonis, Pinyon milkvetch
- Astragalus piscator, Fisher milkvetch
- Astragalus piscinus
- Astragalus piutensis, Sevier milkvetch
- Astragalus plattensis, Platte River milkvetch
- Astragalus platytropis, Broadkeel milkvetch
- Astragalus pleianthus
- Astragalus polaris, Polar milkvetch
- Astragalus pomonensis, Pomona milkvetch
- Astragalus porrectus, Lahontan milkvetch
- Astragalus praelongus, Stinking milkvetch
- Astragalus preussii, Preuss milkvetch
- Astragalus proimanthus
- Astragalus propinquus, Chinese milkvetch
- Astragalus prorifer
- Astragalus proximus
- Astragalus pseudiodanthus, Tonopah milkvetch
- Astragalus pterocarpus, Winged milkvetch
- Astragalus pubentissimus, Green River milkvetch
- Astragalus pulsiferae, Ames milkvetch
- Astragalus puniceus, Trinidad milkvetch
- Astragalus purshii, Woollypod milkvetch
- Astragalus pychnostachyus
- Astragalus pycnostachyus, Marsh milkvetch
- Astragalus racemosus, Cream milkvetch
- Astragalus rafaelensis, San Rafael milkvetch
- Astragalus rattanii, Rattans milkvetch
- Astragalus ravenii, Ravens milkvetch
- Astragalus recurvus
- Astragalus reflexus, Drooping milkvetch
- Astragalus remotus
- Astragalus reventiformis
- Astragalus reventus, Blue Mountain milkvetch
- Astragalus riparius, Woodyroot milkvetch
- Astragalus ripleyi
- Astragalus robbinsii, Robbins milkvetch
- Astragalus rusbyi
- Astragalus sabulonum, Gravel milkvetch
- Astragalus sabulosus, Cisco milkvetch
- Astragalus salinus
- Astragalus salmonis, Trout Creek milkvetch
- Astragalus saurinus, Dinosaur milkvetch
- Astragalus scaphoides, Bitterroot milkvetch
- Astragalus schmolliae
- Astragalus sclerocarpus, Woodypod milkvetch
- Astragalus scopulorum, Rocky Mountain milkvetch
- Astragalus scorpioides
- Astragalus sepultipes, Lone Pine milkvetch
- Astragalus serenoi, Naked milkvetch
- Astragalus sericoleucus, Silky milkvetch
- Astragalus serpens
- Astragalus sesameus
- Astragalus sesquiflorus, Sandstone milkvetch
- Astragalus sheldonii
- Astragalus shevockii, Little Kern milkvetch
- Astragalus shortianus, Shorts milkvetch
- Astragalus siliceus
- Astragalus simplicifolius
- Astragalus sinicus, Chinese milk-vetch
- Astragalus sinuatus, Whiteds milkvetch
- Astragalus solitarius, Solitary milkvetch
- Astragalus sophoroides
- Astragalus soxmaniorum, Soxmans milkvetch
- Astragalus spaldingii, Spaldings milkvetch
- Astragalus sparsiflorus
- Astragalus spatulatus, Tufted milkvetch
- Astragalus speirocarpus, Threadstalk milkvetch
- Astragalus stella
- Astragalus straturensis, Pine Valley milkvetch
- Astragalus striatiflorus, Escarpment milkvetch
- Astragalus striatus
- Astragalus strigosus
- Astragalus subcinereus, Silvers milkvetch
- Astragalus subglaber
- Astragalus subulonum
- Astragalus subvestitus, Kern County milkvetch
- Astragalus succumbens, Columbia milkvetch
- Astragalus tegetarioides, Bastard milkvetch
- Astragalus tegetarius
- Astragalus tehachapiensis
- Astragalus tenellus, Looseflower milkvetch
- Astragalus tener, Alkali milkvetch
- Astragalus tennesseensis, Tennessee milkvetch
- Astragalus tephrodes
- Astragalus terminalis, Railhead milkvetch
- Astragalus tetrapterus, Fourwing milkvetch
- Astragalus thurberi, Thurbers milkvetch
- Astragalus tibetanus
- Astragalus tidestromii, Tidestroms milkvetch
- Astragalus tiehmii, Tiehms milkvetch
- Astragalus titanophilus
- Astragalus toanus, Toano milkvetch
- Astragalus toquimanus, Toquima milkvetch
- Astragalus tortipes
- Astragalus traskiae, Trasks milkvetch
- Astragalus tribuloides
- Astragalus tricarinatus, Triplerib milkvetch
- Astragalus trichopodus, Santa Barbara milkvetch
- Astragalus tridactylicus
- Astragalus troglodytus
- Astragalus tweedyi, Tweedys milkvetch
- Astragalus tyghensis
- Astragalus umbellatus, Tundra milkvetch
- Astragalus umbraticus, Bald Mountain milkvetch
- Astragalus uncialis, Currant milkvetch
- Astragalus utahensis, Utah milkvetch
- Astragalus vaccarum
- Astragalus vallaris, Snake canyon milkvetch
- Astragalus vexilliflexus, Bentflower milkvetch
- Astragalus villosus, Bearded Milkvetch
- Astragalus wardii, Wards milkvetch
- Astragalus waterfallii, Waterfalls milkvetch
- Astragalus watsoni
- Astragalus webberi, Webbers milkvetch
- Astragalus weiserensis
- Astragalus welshii, Loa milkvetch
- Astragalus wetherillii, Wetherills milkvetch
- Astragalus whitneyi, Balloonpod milkvetch
- Astragalus williamsii, Williams milkvetch
- Astragalus wingatanus, Fort Wingate milkvetch
- Astragalus wittmannii, Wittmanns milkvetch
- Astragalus woodruffii, Woodruffs milkvetch
- Astragalus wootonii
- Astragalus wrightii, Wrights milkvetch
- Astragalus xiphoides
- Astragalus yoder-williamsii, Osgood Mountain milkvetch
- Astragalus zionis, Zion milkvetch
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