 |
|
Michaux's Blue-eyed-grass Sisyrinchium mucronatum Michx. |
Monocots |  Printer Friendly Version (PDF) |
Family: Iris Family (Iridaceae)
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 name mucronatum means with a short straight point (Fernald 1970) as is probably in reference to the pointed tips of the petals. |
||||
| State Ranking Justification | [-] |
There are 7 known extant populations and about 16 to 18 populations which have not been seen in over 35 years and are considered historical. Ample habitat for this species exists in New York, but New York is close to the northern edge of its range.
| Short-term Trends | [-] |
Two populations that were known extant within the past 20 years were searched for again without success. In both cases more survey work is needed to determine if these populations have become extirpated. Overall, short term trends are not clear.
| Long-term Trends | [-] |
There are at least 16 populations which have not been seen in over 30 years, some of which, have not been seen in over 100 years. Most of these populations have not been searched for recently and therefore, it is difficult to determine their current status. No population is known to have become extirpated. Six out of the 7 known extant populations were first discovered within the past 20 years. These "new" populations were probably overlooked in the past. Also since this species likes early successional habitats it may move around and not stay in one site for too long. The open habitat that this species requires is very abundant and in general should not be a limiting factor for this species in New York. Overall, long term trends are not clear.
|
Home | Advanced Search | About Us Animal Guides | Plant Guides | Community Guides © 2004-2012 New York Natural Heritage Program, a partnership between the New York State Department of Environmental Conservation and the State University of New York College of Environmental Science and Forestry Please cite this page as:
New York Natural Heritage Program. 2013. Online Conservation Guide for Sisyrinchium mucronatum. Available from: http://www.acris.nynhp.org/guide.php?id=9622. Accessed May 22nd, 2013. 
|