Oreonana is a small genus of flowering plants in the carrot family known generally as mountainparsleys. All three species are endemic to high mountain ranges in California. They are petite, cushionlike mat-forming perennial herbs.

As of December 2022, the Germplasm Resources Information Network considered that it may be a synonym of Cymopterus.

Species:

• Oreonana clementis - pygmy mountainparsley
• Oreonana purpurascens - purple mountainparsley
• Oreonana vestita - woolly mounainparsley

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