New York Natural Heritage Program
Sweet Coltsfoot
Petasites frigidus var. palmatus (Ait.) Cronq.
Dicots
Family: Aster Family (Asteraceae)

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: G5T5
A Global Rarity Rank of G5T5 means: Secure globally - Both the species as a whole and the subspecies/variety are common in the world; widespread and abundant (but may be rare in some parts of its range).


Did you know?
The leaf stalks and flower stems (with flowers) are edible, and can be used as a vegetable dish. A salt-substitute can also be made by drying and then burning the leaves. This black, powdery substance will provide a salty taste (Petasites frigidus in Wikipedia, accessed 16 November 2007). In New York the flowers have never been photographed in the wild.

State Ranking Justification [-]
There are only three existing populations in the state. There are 20 historical occurrences,` and many of these have not been searched in detail, so it is expected that a few more populations could be found. Some historical records are probably extirpated by changes in hydrology or development of wetlands.

Short-term Trends [-]

Long-term Trends [-]