New York Natural Heritage Program
Dwarf Willow
Salix herbacea L.
Dicots
Salix herbacea on Mount Marcy Julia Goren
Family: Willow Family (Salicaceae)

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: G5
A Global Rarity Rank of G5 means: This species is demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery.


Did you know?
The specific epithet herbacea means herb-like, or not woody, and is in reference to how this shrub is very small and may appear to be an herb. At present, this species is very rare in New York and is restricted to our highest mountain, Mt. Marcy.

State Ranking Justification [-]
There is only one known population. This population has between 1 and 10 genetically distinct colonies. There is also one historical population documented by a specimen from 1923. A non-documented report indicates that one individual was seen from this population in 1980, but since then no plants have been seen, even though this population was intensively searched for by botanists who knew the exact location of the plants. Therefore, this second population is believed to be extirpated.

Short-term Trends [-]

Long-term Trends [-]