Search for Penstemon australis returned 2,906 results.

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  1. species: Penstemon plummerae Abrams

    Synonym of Keckiella antirrhinoides var. antirrhinoides null

  2. species: Penstemon suffrutescens Rydb.

    Synonym of Penstemon crandallii var. crandallii null

  3. species: Penstemon shastensis D.D.Keck

    Synonym of Penstemon heterodoxus var. shastensis (D.D.Keck) N.H.Holmgren

  4. species: Penstemon recurvatus A.Heller

    Synonym of Penstemon rydbergii var. oreocharis (Greene) N.H.Holmgren

  5. species: Penstemon seorsus (A.Nelson) D.D.Keck

  6. species: Penstemon duchesnensis (N.H.Holmgren) Neese

  7. species: Penstemon sagittatus (D.D.Keck) Pennell

    Synonym of Penstemon laetus var. sagittatus (D.D.Keck) McMinn

  8. species: Penstemon cacuminis Pennell

    Synonym of Penstemon procerus var. formosus (D.D.Keck) Cronquist

  9. species: Penstemon formosus A.Nelson

    Synonym of Penstemon procerus var. formosus (D.D.Keck) Cronquist

  10. species: Penstemon grandiflorus F.Dietr.

    Synonym of Penstemon cobaea Nutt.