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Status: Threatened Federally, listed November 14, 1988
Endangered in Missouri
Habitat: Disturbed alluvial soils (Mississippi and Illinois River alluvial floodplain)
Range: Illinois, Missouri
Protected under the Endangered Species Act
Habitat destruction
Invasive species
Population
Pollution
Over harvesting
Habitat destruction
Construction of locks and dams along the Mississippi river have prevented flooding in certain areas.
The Decurrent False Aster is dependent on periodic major floods from river to wipe out other species in order for it to thrive. Flooding helps with the seed germination of the plant. Seeds are only viable for 2 years.
The dispersal of this plant is mainly by flood water.
This plant will be eliminated without flooding withing 3 to 5 years.
Run off
Agricultural run off prevents seed germination and production.
Causes blockage and smothering of the seed.
Human disturbance
Populations along roadsides are often mowed during their growing season preventing seed production.
Questions?
http://www.fws.gov/Midwest/endangered/plants/decurrentfalseaster/index.html
http://www.fws.gov/endangered/about/ep_21_2011.html
http://www.fws.gov/Midwest/endangered/plants/decurrentfalseaster/index.html