New York Natural Heritage Program
Little-leaf Tick-trefoil
Desmodium ciliare (Muhl. ex Willd.) DC.
Dicots
Desmodium ciliare flower and fruit Kimberly J. Smith
Family: Pea Family (Fabaceae)

State Protection: Threatened
listed species are those with: 1) 6 to fewer than 20 extant sites, or 2) 1,000 to fewer than 3,000 individuals, or 3) restricted to not less than 4 or more than 7 U.S.G.S. 7 minute topographical maps, or 4) listed as threatened by U.S. Department of Interior.

Federal Protection: Not Listed

State Rarity Rank: S2S3
A State Rarity Rank of S2S3 means: Imperiled or Vulnerable in New York - Very vulnerable to disappearing from New York, or vulnerable to becoming imperiled in New York, due to rarity or other factors; typically 6 to 80 populations or locations in New York, few individuals, restricted range, few remaining acres (or miles of stream), and/or recent and widespread declines. More information is needed to assign a single conservation status.

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?
Little-leaf Tick-trefoil has the shortest leaflets of any Desmodium in New York State. Historical records show the species occurring across the state south of the Adirondacks in open sandy areas, similar to the areas where blue lupine is found. It should be looked for where lupine has been seen. Presently it is known only from Long Island and the Syracuse and Rochester areas.

State Ranking Justification [-]
There are 16 existing populations, but only 3 of them have more than 100 plants, although the largest has more than 5000. There are 49 historical occurrencess and many have not been checked.

Short-term Trends [-]

Long-term Trends [-]