Search for Penstemon australis returned 2,906 results.

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  1. species: Penstemon violaceus (Brandegee) A.Nelson

    Synonym of Penstemon roezlii Regel

  2. species: Penstemon parvulus (A.Gray) Krautter

  3. species: Penstemon pinetorum (Piper) Piper

    Synonym of Penstemon wilcoxii Rydb.

  4. species: Penstemon trichander (A.Gray) Rydb.

    Synonym of Penstemon barbatus var. trichander A.Gray

  5. species: Penstemon atropurpureus (Sweet) G.Don

  6. species: Penstemon angelicus (I.M.Johnst.) Moran

  7. species: Penstemon incanus (A.Gray) Tidestr.

    Synonym of Penstemon pumilus Nutt.

  8. species: Penstemon imberbis (Kunth) Trautv.

  9. species: Penstemon rupicola (Piper) Howell

  10. species: Penstemon schaffneri (Hemsl.) Straw