New York Natural Heritage Program
Nantucket Juneberry
Amelanchier nantucketensis Bickn.
Family: Rose Family (Rosaceae)

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: G3Q
A Global Rarity Rank of G3Q means: Vulnerable globally - At moderate risk of extinction due to rarity or other factors; typically 80 or fewer populations or locations in the world, few individuals, restricted range, few remaining acres (or miles of stream), and/or recent and widespread declines. The Q indicates this species’ status as a distinctive full species is uncertain.

Did you know?
This is the only juneberry in New York with flowers that produce pollen on the edges of the petals. It was first described from plants on Nantucket Island in Massachusetts by botanist Eugene Bicknell in 1911 (Bicknell 1911).

State Ranking Justification [-]
There are three known populations on Long Island and one on Staten Island that is under threat. The largest population has about 200 plants. There is one additional old record at Montauk Point that has not been surveyed.

Short-term Trends [-]

Long-term Trends [-]