Information about Oklahoma's Flora

Oklahoma Vascular Plant Diversity

173 families
868 genera
2540 species
86% of the flora is native

Oklahoma endemics

Betulaceae     Alnus maritima ssp. oklahomensis Brassicaceae     Leavenworthia aurea ssp. aurea Polemoniaceae     Phlox longipilosa Scrophulariaceae     Penstemon oklahomensis

Plants with restricted ranges occurring in Oklahoma and adjacent states

Apocynaceae
Amsonia hubrichtii (in Oklahoma and Arkansas)
Asteraceae
Solidago ouachitensis (in Oklahoma and Arkansas)
Vernonia lettermannii (in Oklahoma and Arkansas)
Brassicaceae
Lesquerella angustifolia (in SE Oklahoma and NE Texas)
Lesquerella ovalifolia ssp. alba (in Oklahoma and Kansas)
Streptanthus squamiformis (in Oklahoma and Arkansas)
Cyperaceae
Carex latebracteata (in Oklahoma and Arkansas)
Fabaceae
Amorpha ouachitensis (Ouachita indigobush)
Lamiaceae
Monarda stipitatoglandulosa (in Oklahoma and Arkansas)
Polemoniaceae
Phlox oklahomensis (in Oklahoma and Kansas)
Ranunculaceae
Thalictrum arkansanum (in SE Oklahoma, SW Arkansas, and NE Texas)
Rubiaceae
Houstonia ouachitana (in Oklahoma and Arkansas)
Valerianaceae
Valerianella nuttallii (in Oklahoma and Arkansas)
Valerianella palmeri (in Oklahoma and Arkansas)

This page is sponsored by the Oklahoma Biological Survey

Disclaimer