Oklahoma's Most Wanted - list of expected, rare, and vulnerable plants

Plants in adjacent states that may occur in Oklahoma

​Asteraceae
Liatris squarrosa var. compacta (in Ouachita Mts. of Arkansas)
Polymnia cossatotensis (in Ouachita Mts. of Arkansas)

Brassicaceae
Streptanthus maculatus ssp. obtusifolius (in Ouachita Mts. of Arkansas)

Cyperaceae
Carex aurea (in surrounding states)

Commelinaceae
Tradescantia virginiana (in Missouri and possibly Arkansas)

Dryopteridaceae
Woodsia scopulina subsp. appalachiana (in Arkansas River valley of Arkansas)
Woodsia plummerae (in New Mexico and Texas)

Fabaceae
Dalea reverchonii (in north central Texas)

Fagaceae
Quercus acerifolia (in Ouachita Mts. and Arkansas River valley of Arkansas)

Hydrophyllaceae
Hydrophyllum brownei (in Ouachita Mts. and Arkansas River valley of Arkansas)

Polygalaceae
Polygala senega (in surrounding states)

Polygonaceae
Eriogonum correllii (in Texas panhandle)

Rafflesiaceae
Pilostyles thurberi (in Texas and New Mexico)