New York Natural Heritage Program
Cooper's Milkvetch
Astragalus neglectus (Torr. & Gray) Sheldon
Astragalus neglectus Stephen M. Young
Family: Pea Family (Fabaceae)

State Protection: Endangered
listed species are those with: 1) 5 or fewer extant sites, or 2) fewer than 1,000 individuals, or 3) restricted to fewer than 4 U.S.G.S. 7 minute topographical maps, or 4) species listed as endangered by U.S. Department of Interior.

Federal Protection: Not Listed

State Rarity Rank: S1
A State Rarity Rank of S1 means: This plant is endangered/critically imperiled in New York because of extreme rarity (typically 5 or fewer populations or very few remaining individuals) or is extremely vulnerable to extirpation from New York due to biological factors.

Global Rarity Rank: G4
A Global Rarity Rank of G4 means: This species is apparently secure globally (typically with more than 100+ populations), though it may be quite rare in parts of its range, especially at the periphery.

Did you know?
Asa Gray first named this species Astragalus cooperi in honor of William Cooper (1798-1864), noted American naturalist and discoverer of the species (Gray 1859). He was one of the founders of the New York Lyceum of Natural History (later the New York Academy of Sciences), and the first American member of the Zoological Society of London. The Cooper's hawk is named after him (Wikipedia contributors) and he was the person who, in 1830, discovered Hart's-tongue fern at Chittenango Falls.

State Ranking Justification [-]
There are three existing populations that have fewer than 50 plants each. There are 23 historical locations, mostly known from the late 1800s and early 1900s up to 1942. Most of these locations have either not been searched in detail for this species or have been extirpated.

Short-term Trends [-]

Long-term Trends [-]