Over 56 known element occurrences rangewide.
Alteration of streambanks
Conversion of wetland areas
Clear-cutting and conversion of forests to pine plantations
(Oklahoma Natural Heritage Inventory 1999)
Currently known from at least eleven populations in eight counties in Arkansas and three counties (McCurtain, Leflore, Pushmataha) in Oklahoma (Oklahoma Natural Heritage Inventory 1999).
Areas harboring populations of Ouachita indigobush should be protected from stream alteration or wetland drainage. Additional research into the life history of this plant is crucial (Oklahoma Natural Heritage Inventory 1999).
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