Genus of legumes
Fruits and seeds of Astragalus hamosus Astragalus is a large genus of over 3,000 species[2] of herbs and small shrubs , belonging to the legume family Fabaceae and the subfamily Faboideae . It is the largest genus of plants in terms of described species.[3] The genus is native to temperate regions of the Northern Hemisphere . Common names include milkvetch (most species), locoweed (in North America, some species)[4] and goat's-thorn (A. gummifer , A. tragacantha ). Some pale-flowered vetches (Vicia spp.) are similar in appearance, but they are more vine-like than Astragalus .
Description Most species in the genus have pinnately compound leaves.[5] There are annual and perennial species. The flowers are formed in clusters in a raceme , each flower typical of the legume family, with three types of petals: banner, wings, and keel. The calyx is tubular or bell-shaped.[6] [7]
Taxonomy The genus was formally described in 1753 by Carl Linnaeus in his Species Plantarum .[8]
The name Astragalus is Greek , an old name for this group of plants which were believed to have a positive effect on goat milk production.[9]
Selected species Astragalus acutirostris – sharpkeel milkvetchAstragalus agnicidus – Humboldt County milkvetchAstragalus agrestis – field milkvetch, purple milkvetch, cock's-headAstragalus albens – Cushenbury milkvetchAstragalus alpinus – alpine milkvetch, mountain locoweedAstragalus amphioxys – crescent milkvetchAstragalus ampullarioides – Shivwits milkvetchAstragalus andersonii – Anderson's milkvetchAstragalus anemophilus – San Quintin Dune milkvetchAstragalus anisus - Gunnison milkvetchAstragalus annularis Astragalus anserinus – Goose Creek milkvetchAstragalus anxius – troubled milkvetchAstragalus applegatei – Applegate's milkvetchAstragalus arrectus – Palouse milkvetchAstragalus asymmetricus – San Joaquin milkvetchAstragalus atropilosulus Astragalus austiniae – Austin's milkvetchAstragalus australis – Indian milkvetchAstragalus azizi – Iranian milkvetchAstragalus barrii – Barr's milkvetchAstragalus bernardinus – San Bernardino milkvetchAstragalus bibullatus – limestone-glade milkvetchAstragalus bicristatus – crested milkvetch, two-crested milkvetchAstragalus bidentatus Astragalus bisulcatus – two-groove milkvetchAstragalus boeticus – kaffevedel (Swedish) [10] Astragalus alopecurus Astragalus bolanderi – Bolander's milkvetchAstragalus brachycalyx Astragalus brauntonii – Braunton's milkvetchAstragalus breweri – Brewer's milkvetchAstragalus californicus – California milkvetchAstragalus canadensis – Canadian milkvetchAstragalus casei – Case's milkvetchAstragalus cavanillesii Astragalus cicer – wild lentil, chickpea milkvetchAstragalus cimae – Cima milkvetchAstragalus claranus – Clara Hunt's milkvetch, Napa milkvetchAstragalus clevelandii – Cleveland's milkvetchAstragalus coccineus – scarlet milkvetch, scarlet locoweedAstragalus congdonii – Congdon's milkvetchAstragalus cremnophylax – Sentry milkvetchAstragalus crotalariae – Salton milkvetchAstragalus curtipes – Morro milkvetchAstragalus danicus – purple milkvetchAstragalus deanei – Deane's milkvetch, Dean's milkvetchAstragalus desereticus – Deseret milkvetchAstragalus didymocarpus – two-seeded milkvetch, dwarf white milkvetch, white dwarf locoweedAstragalus distortus – Ozark milkvetchAstragalus douglasii – Douglas's milkvetchAstragalus ehrenbergii Astragalus ertterae – Walker Pass milkvetchAstragalus falcatus - Russian milkvetch, sickle milkvetch, sicklepod milkvetch, silverleaf milkvetch, Russian-sickleAstragalus filipes – basalt milkvetchAstragalus funereus – Funeral Mountain milkvetchAstragalus gambelianus – Gambel's dwarf milkvetch, dwarf locoweedAstragalus gibbsii – Gibbs's milkvetchAstragalus gilmanii – Gilman's milkvetchAstragalus glycyphyllos – wild liquorice, licorice milkvetchAstragalus harbisonii - Punta Baja milkvetchAstragalus holmgreniorum – Holmgren locoweedAstragalus humillimus – Mancos milkvetchAstragalus hypoxylus – Huachuca Mountain milkvetchAstragalus inversus – Susanville milkvetchAstragalus inyoensis – Inyo milkvetchAstragalus iselyi – Isely's milkvetchAstragalus jaegerianus – Lane Mountain milkvetchAstragalus johannis-howellii – Long Valley milkvetchAstragalus kentrophyta – spiny milkvetchAstragalus layneae – widow's milkvetchAstragalus lemmonii – Lemmon's milkvetchAstragalus lentiformis – lens pod milkvetchAstragalus lentiginosus – freckled milkvetch, mottled locoweed, speckled locoweed, spotted locoweedAstragalus leontinus – Tyrolean milkvetchAstragalus leptaleus Astragalus leucolobus – Bear Valley woollypod, Bear Valley milkvetchAstragalus limnocharis Astragalus linifolius – Grand Junction milkvetchAstragalus loanus – Glenwood milkvetchAstragalus lotoides Astragalus malacus – shaggy milkvetchAstragalus microcymbus – Skiff milkvetchAstragalus miguelensis – San Miguel milkvetchAstragalus missouriensis – Missouri milkvetchAstragalus mohavensis – Mojave milkvetchAstragalus molybdenus - Leadville milkvetch, molybdenum milkvetch.Astragalus mongholicus – huang qi (黄芪/黃芪 huáng qí; běi qí 北芪) Mongolian milkvetchAstragalus monoensis – Mono milkvetchAstragalus monspessulanus - Montpellier milkvetchAstragalus mulfordiae – Mulford's milkvetchAstragalus nevinii – San Clemente Island milkvetchAstragalus newberryi – Newberry's milkvetchAstragalus nitidiflorus – Tallante's milkvetchAstragalus nutans – Providence Mountains milkvetchAstragalus nuttallianus – small-flowered milkvetchAstragalus nuttallii – Nuttall's milkvetchAstragalus obscurus – arcane milkvetchAstragalus onobrychis Astragalus oocarpus – Descanso milkvetch, San Diego milkvetchAstragalus oophorus – egg milkvetchAstragalus osterhoutii – Osterhout milkvetchAstragalus oxyphysus – Mt. Diablo milkvetch, Diablo locoweedAstragalus pachypus – thickpod milkvetchAstragalus panamintensis – panamint milkvetchAstragalus pauperculus – depauperate milkvetchAstragalus phoenix – Ash Meadows milkvetchAstragalus platytropis – broadkeel milkvetchAstragalus pomonensis – Pomona milkvetch, Pomona locoweedAstragalus proimanthus – precocious milkvetchAstragalus proximus - Aztec milkvetchAstragalus pulsiferae – Ames's milkvetchAstragalus purshii – Pursh's milkvetch, Woollypod milkvetch, woollypod locoweedAstragalus pycnostachyus – Marsh milkvetchAstragalus rattanii – Rattan's milkvetchAstragalus ripleyi - Ripley's milkvetchAstragalus robbinsii – Robbins's milkvetchAstragalus sabulonum – gravel milkvetchAstragalus sarcocolla Astragalus scaphoides – bitterroot milkvetchAstragalus schmolliae – Schmoll milkvetchAstragalus shevockii – Shevock's milkvetch, Little Kern milkvetchAstragalus sinicus – Chinese milkvetch, rengeAstragalus sinuatus – Whited's milkvetchAstragalus soxmaniorum – Soxman's milkvetchAstragalus subvestitus – Kern County milkvetchAstragalus tener – alkali milkvetchAstragalus tennesseensis – Tennessee milkvetchAstragalus tidestromii – Tidestrøm's milkvetchAstragalus tragacantha - Marseille milkvetchAstragalus traskiae – Trask's milkvetchAstragalus tricarinatus – triple-ribbed milkvetchAstragalus trichopodus – Santa Barbara milkvetch, coast locoweed, Southern California locoweedAstragalus tuyehensis from IranAstragalus tyghensis - Tygh Valley milkvetchAstragalus umbraticus – Bald Mountain milkvetchAstragalus webberi – Webber's milkvetchAstragalus wetherillii - Wetherill's milkvetchAstragalus whitneyi – balloon-pod milkvetchAstragalus zionis – Zion milkvetchAstragalus testiculatus
Astragalus dasyanthus
Ecology Astragalus species are used as food plants by the larvae of some Lepidoptera species including many case-bearing moths of the genus Coleophora : C. cartilaginella , C. colutella , C. euryaula , and C. onobrychiella feed exclusively on Astragalus , C. astragalella and C. gallipennella feed exclusively on the species Astragalus glycyphyllos , and C. hippodromica is limited to Astragalus gombo .[citation needed ]
Uses
Traditional medicine Astragalus has been used in traditional Chinese medicine over centuries to treat various disorders, but there is no high-quality evidence that it is effective or safe for any medical purpose.[11] [12]
Phytochemicals and supplements Extracts of astragalus root include diverse phytochemicals , such as saponins and isoflavone flavonoids , which are purported in traditional practices to increase lactation in nursing mothers.[13] There is no valid clinical evidence to indicate such use is effective or safe for the mother or infant.[13] Dietary supplement products containing astragalus extracts may not have been adequately tested for efficacy, safety, purity or consistency.[13] The root extracts of astragalus may be used in soups, teas or sold in capsules .[11]