Astragalus canadensis - L.
Canadian Milkvetch
Other Common Names: Canadian milkvetch
Synonym(s): Astragalus carolinianus L. ;Astragalus halei Rydb.
Taxonomic Status: Accepted
Related ITIS Name(s): Astragalus canadensis L. (TSN 25451)
Unique Identifier: ELEMENT_GLOBAL.2.142808
Element Code: PDFAB0F1Q0
Informal Taxonomy: Plants, Vascular - Flowering Plants - Pea Family
Kingdom Phylum Class Order Family Genus
Plantae Anthophyta Dicotyledoneae Fabales Fabaceae Astragalus
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Concept Reference
Concept Reference: Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Concept Reference Code: B94KAR01HQUS
Name Used in Concept Reference: Astragalus canadensis
Conservation Status

NatureServe Status

Global Status: G5
Global Status Last Reviewed: 16May2016
Global Status Last Changed: 09Aug1984
Ranking Methodology Used: Ranked by inspection
Rounded Global Status: G5 - Secure
Reasons: The North American astragalus with the largest distributional range, this species is found throughout most of North America and into Siberia in a wide variety of habitats. It is rare in parts of the eastern and southeastern United States and in a few other areas, but is still common in most of its range. The typical variety is especially abundant from Minnesota and Wisconsin south to Missouri and eastern Oklahoma; the other two varieties are found in the Great Basin and forested Intermountain Northwest, and are abundant in large areas of eastern Washington and Idaho.
Nation: United States
National Status: N5
Nation: Canada
National Status: N5 (15Apr2014)

U.S. & Canada State/Province Status
United States Alabama (S1), Arkansas (SNR), California (SNR), Colorado (SNR), Connecticut (SNR), District of Columbia (SX), Georgia (S1), Idaho (SNR), Illinois (SNR), Indiana (SNR), Iowa (S5), Kansas (SNR), Kentucky (S3), Louisiana (S3), Maryland (S1), Michigan (S1S2), Minnesota (SNR), Mississippi (S2), Missouri (SNR), Montana (S5), Nebraska (SNR), Nevada (SNR), New Jersey (SNR), New Mexico (SNR), New York (S3S4), North Carolina (S3?), North Dakota (SNR), Ohio (S2), Oklahoma (SNR), Oregon (SNR), Pennsylvania (S2), South Carolina (SNR), South Dakota (SNR), Tennessee (SNR), Texas (SNR), Utah (S2), Vermont (S2), Virginia (S4), Washington (SNR), West Virginia (S4), Wisconsin (SNR), Wyoming (S3?)
Canada Alberta (S4), British Columbia (SNR), Manitoba (S5), Northwest Territories (SNR), Ontario (S4), Quebec (S3), Saskatchewan (S5)

Other Statuses

NatureServe Global Conservation Status Factors

Other NatureServe Conservation Status Information

U.S. States and Canadian Provinces
Color legend for Distribution Map

U.S. & Canada State/Province Distribution
United States AL, AR, CA, CO, CT, DCextirpated, GA, IA, ID, IL, IN, KS, KY, LA, MD, MI, MN, MO, MS, MT, NC, ND, NE, NJ, NM, NV, NY, OH, OK, OR, PA, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY
Canada AB, BC, MB, NT, ON, QC, SK

Range Map
No map available.

U.S. Distribution by County Help
State County Name (FIPS Code)
AL Dallas (01047), Greene (01063), Sumter (01119)
GA Dade (13083)
MD Allegany (24001), Montgomery (24031), Washington (24043)
MI Alger (26003), Berrien (26021)*, Delta (26041), Kalamazoo (26077)*, Kent (26081)*, Lapeer (26087)*, Lenawee (26091)*, Livingston (26093)*, Montcalm (26117)*, Oakland (26125)*, Ontonagon (26131), Oscoda (26135), St. Clair (26147), St. Joseph (26149)*, Washtenaw (26161)
MS Bolivar (28011), Clay (28025), Kemper (28069), Noxubee (28103), Oktibbeha (28105), Pontotoc (28115), Tishomingo (28141)
NJ Sussex (34037)*
OH Adams (39001), Brown (39015), Jefferson (39081)*, Lucas (39095), Meigs (39105), Monroe (39111), Ottawa (39123), Ross (39141), Scioto (39145), Vinton (39163)*, Warren (39165)
PA Allegheny (42003)*, Beaver (42007)*, Bedford (42009), Cambria (42021)*, Clarion (42031)*, Erie (42049)*, Fayette (42051)*, Franklin (42055)*, Indiana (42063)*, Perry (42099)*, Somerset (42111)*, Susquehanna (42115), Tioga (42117)*, Washington (42125)*, Wayne (42127)*, Westmoreland (42129)
VT Addison (50001), Chittenden (50007), Franklin (50011), Grand Isle (50013)
* Extirpated/possibly extirpated
U.S. Distribution by Watershed Help
Watershed Region Help Watershed Name (Watershed Code)
02 Lackawaxen (02040103)+*, Middle Delaware-Musconetcong (02040105)+*, Upper Susquehanna (02050101)+, Pine (02050205)+*, Raystown (02050303)+, Lower Susquehanna-Swatara (02050305)+*, North Branch Potomac (02070002)+, Cacapon-Town (02070003)+, Conococheague-Opequon (02070004)+*, Middle Potomac-Catoctin (02070008)+
03 Middle Alabama (03150203)+, Town (03160102)+, Tibbee (03160104)+, Middle Tombigbee-Lubbub (03160106)+, Noxubee (03160108)+
04 Black-Presque Isle (04020101)+*, Ontonagon (04020102)+, Keweenaw Peninsula (04020103)+*, Tacoosh-Whitefish (04030111)+, Fishdam-Sturgeon (04030112)+, Little Calumet-Galien (04040001)+*, St. Joseph (04050001)+*, Black-Macatawa (04050002)+*, Maple (04050005)+*, Lower Grand (04050006)+*, Au Sable (04070007)+, Flint (04080204)+*, St. Clair (04090001)+, Clinton (04090003)+*, Detroit (04090004)+*, Huron (04090005)+, Raisin (04100002)+*, Cedar-Portage (04100010)+, Lake Erie (04120200)+*, Lake Champlain (04150408)+
05 Middle Allegheny-Redbank (05010006)+*, Conemaugh (05010007)+*, Kiskiminetas (05010008)+*, Lower Allegheny (05010009)+*, Lower Monongahela (05020005)+*, Youghiogheny (05020006)+, Upper Ohio (05030101)+*, Shenango (05030102)+*, Little Muskingum-Middle Island (05030201)+, Lower Scioto (05060002)+, Raccoon-Symmes (05090101)+, Ohio Brush-Whiteoak (05090201)+, Little Miami (05090202)+
06 Middle Tennessee-Chickamauga (06020001)+, Pickwick Lake (06030005)+
08 Deer-Steele (08030209)+
+ Natural heritage record(s) exist for this watershed
* Extirpated/possibly extirpated
Ecology & Life History Not yet assessed
Economic Attributes
Economically Important Genus: Y
Management Summary Not yet assessed
Population/Occurrence Delineation Not yet assessed
Population/Occurrence Viability
U.S. Invasive Species Impact Rank (I-Rank) Not yet assessed
NatureServe Conservation Status Factors Edition Date: 07Jun2002
NatureServe Conservation Status Factors Author: Maybury, K.

Botanical data developed by NatureServe and its network of natural heritage programs (see Local Programs), The North Carolina Botanical Garden, and other contributors and cooperators (see Sources).

  • Barneby, R.C. 1964. Atlas of North American Astragalus. 2 Vols. New York Botanical Garden, Bronx, New York. 1188 pp.

  • Kartesz, J. T. 1991. Synonym names from 1991 checklist, as extracted by Larry Morse, TNC, June 1991.

  • Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.

  • U.S. Geological Survey, Northern Prairie Wildlife Research Center. 2002. Canada milkvetch (Astragalus canadensis). Available: /astrcana.htm. Accessed June 7, 2002.

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