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Slender Pinweed Lechea tenuifolia Michx. |
Dicots |  Printer Friendly Version (PDF) |
Family: Rock-Rose Family (Cistaceae)
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? The genus Lechea was named by Linneaus for Johan Leche (1704-1764), a Swedish botanist who taught in Finland. He is regarded as the father of meteorology and space research in Finland for his early measurements of air temperature (at the suggestion of Anders Celsius) and documentation of the northern lights. So the next time you are looking at Lechea on a hot day think of Dr. Leche. The species name refers to the very long narrow leaves of the basal shoot. |
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| State Ranking Justification | [-] |
There are 18 existing populations but only four of these are in good condition with substantial numbers for good viability. Five populations need to be resurveyed to obtain more information about condition and numbers. There are seven historical occurrences.
| Short-term Trends | [-] |
Existing populations seem stable although more survey work needs to be done to assess more populations since many plants occur in human-disturbed areas that could change quickly.
| Long-term Trends | [-] |
This species was never common in New York and is restricted mainly to eastern Long Island with a few disjunct populations in the Hudson Valley. Many historical populations have been relocated and there are now more existing populations than remaining historical records. Over the last 100 years the number of populations has probably remained about the same even though the size of the populations may have decreased.
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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 Lechea tenuifolia. Available from: http://acris.nynhp.org/guide.php?id=8950. Accessed May 25th, 2013. 
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