Scientific Name: Limnanthes macounii
Taxonomy Group: Vascular Plants
COSEWIC Range: British Columbia
COSEWIC Assessment Date and Status Change: November 2004
COSEWIC Status: Threatened
COSEWIC Status Criteria: Met criteria for Endangered, B1ab(iii)+2ab(iii), but designated Threatened, B1ab(iii)+2ab(iii); D2, because the species does not seem to be at imminent risk of extirpation.
COSEWIC Reason for Designation: A Canadian endemic highly restricted within a narrow coastal fringe of seasonally wet microhabitats where it is at risk from continued competition with a wide range of exotic plants. Its presence in a highly urbanized area results in habitat disruption and population losses.
COSEWIC History of Status Designation: Designated Special Concern in April 1988. Status re-examined and designated Threatened in November 2004.
SARA Status: Schedule 1, Threatened
Date of Listing (yyyy-mm-dd): 2006-08-15
Please note that this information is provided for general information purposes only. For the most up to date and accurate list of species listed under the Species at Risk Act, please see the Justice Laws Website.
Macoun's Meadowfoam is a small annual plant that measures 2 to 5 cm in height. When small the plants stand erect, when large they droop. The leaves measure 1 to 7 cm in length; fully developed plants have 2 to 5 leaves. The small single white flower measures 7 to 10 mm in diameter. The fruit are small greyish-green to brown nuts that measure 3 mm in length.
Distribution and Population
In Canada, Macoun's Meadowfoam is found only in British Columbia.
Macoun's Meadowfoam grows in open areas, close to the shore of the Pacific Ocean, that are wet in the winter and dry in the summer. Since Macoun's Meadowfoam is an annual that grows during the winter months, a maritime climate with a mild winter are essential for this plant.
The vegetative period of Macoun's Meadowfoam is from the beginning of October to the beginning of June; it germinates after the first heavy rains of autumn. The flower stalks develop in February and March; flowering occurs at the end of March or the beginning of April. Macoun's Meadowfoam reproduces through seeds; insects are the main pollinators. The single flower on a plant produces 3 to 4 small nuts which fall from the plant and remain close to it. The plants die in June.
Habitat destruction or modification is the greatest threat to populations of Macoun's Meadowfoam. This is due to the fact that this plant grows in waterfront areas with excellent climatic conditions - areas that are also choice residential locations. Competition with introduced plant species is also a major threat. Invasive species such as various exotic grasses, sub clover (Trifolium subterraneum), field burrweed (Soliva sessilis), and bulbous bluegrass (Poa bulbosa) are taking the place of Macoun's Meadowfoam.
The Macoun's Meadowfoam is protected under the federal Species at Risk Act (SARA). More information about SARA, including how it protects individual species, is available in the Species at Risk Act: A Guide.
Provincial and Territorial Protection
Status of Recovery Planning
Recovery Strategies :
Name Recovery Strategy for the Macoun’s Meadowfoam (Limnanthes macounii) in Canada
Status First posting on SAR registry
Garry Oak Ecosystems Recovery Team
Conan Webb - Chair/Contact - Parks Canada
Phone: 250-478-5153 Send Email
PLEASE NOTE: Not all COSEWIC reports are currently available on the SARA Public Registry. Most of the reports not yet available are status reports for species assessed by COSEWIC prior to May 2002. Other COSEWIC reports not yet available may include those species assessed as Extinct, Data Deficient or Not at Risk. In the meantime, they are available on request from the COSEWIC Secretariat.
13 record(s) found.
- COSEWIC Status Reports (1 record(s) found.)
- Response Statements (1 record(s) found.)
- Recovery Strategies (1 record(s) found.)
- Action Plans (1 record(s) found.)
- Orders (2 record(s) found.)
- COSEWIC Annual Reports (1 record(s) found.)
- Permits and Related Agreements (4 record(s) found.)
- Consultation Documents (1 record(s) found.)
- Exceptions (1 record(s) found.)
COSEWIC Status Reports
Response Statements - Macoun's Meadowfoam (2005-11-15)A Canadian endemic highly restricted within a narrow coastal fringe of seasonally wet microhabitats where it is at risk from continued competition with a wide range of exotic plants. Its presence in a highly urbanized area results in habitat disruption and population losses.
COSEWIC Annual Reports
COSEWIC Annual Report - 2005 (2005-08-12)2005 Annual Report to the Canadian Endangered Species Conservation Council (CESCC) from the Committee on the Status of Endangered Wildlife in Canada.