Search for Penstemon australis returned 2,906 results.

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  1. species: Penstemon pseudoputus (Crosswh.) N.H.Holmgren

  2. species: Penstemon tusharensis N.H.Holmgren

    Synonym of Penstemon xylus A.Nelson

  3. species: Penstemon menziesii Hook.

    Synonym of Penstemon fruticosus (Pursh) Greene

  4. species: Penstemon fruticosus (Pursh) Greene

  5. species: Penstemon stenosepalus (A.Gray) Howell

    Synonym of Penstemon whippleanus A.Gray

  6. species: Penstemon pandus (A.Nelson & J.F.Macbr.) A.Nelson & J.F.Macbr.

    Synonym of Penstemon perpulcher A.Nelson

  7. species: Penstemon luculentus R.L.Johnson & M.R.Stevens

    Synonym of Penstemon fremontii var. glabrescens Dorn & Lichvar

  8. species: Penstemon xylus A.Nelson

  9. species: Penstemon filiformis (D.D.Keck) D.D.Keck

  10. species: Penstemon marcusii (D.D.Keck) N.H.Holmgren