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Violet Wood-sorrel Oxalis violacea L. |
Dicots |  Printer Friendly Version (PDF) |
Family: Wood-Sorrel Family (Oxalidaceae)
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 the Interior. Federal Protection: Not Listed State Rarity Rank: S2
A State Rarity Rank of S2 means: This plant is threatened/imperiled in New York because of rarity (typically 6-20 populations or few remaining individuals) or is 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? A characteristic of many members of this genus is that they contain oxalic acid, giving the leaves and flowers a sour taste, refreshing to chew in small amounts. However, in large amounts, these species are toxic, and interfere with proper digestion. In the past, it was a practice to extract crystals of calcium oxalate for use in treating diseases and as a salt called "sal acetosella", or "sorrel salt" (Oxalis in Wikipedia accessed 16 November 2007). |
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| State Ranking Justification | [-] |
There are 14 existing populations, and most of them contain hundreds of plants. A couple of populations contain over 1000 plants. There are 30 historical records but most of these are from areas of the Lower Hudson region and Long Island that have been developed. It is not expected that these historical occurrences would be relocated, but more populations could be found in mountainous areas that are not easily accessible.
| Short-term Trends | [-] |
A few of the existing populations have been resurveyed and they seem to be doing well, while more survey work is needed to have a more complete picture of short-term trends.
| Long-term Trends | [-] |
Most of the historical records are probably extirpated since they occurred in highly developed areas, but new discoveries have been made in more isolated natural areas where populations would tend to persist.
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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 Oxalis violacea. Available from: http://acris.nynhp.org/guide.php?id=9210. Accessed May 22nd, 2013. 
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