Metcalfe’s Bush-beardtongue (Penstemon metcalfei) Metcalfe’s Bush-beardtongue (Penstemon metcalfei) in situ in New Mexico. Photo Credit: Emma Knapp Photo Uploader: Tina Stanley Tags: Penstemon metcalfei - View Plant Profile CPC Permission: I allow this image to be used by the Center for Plant Conservation for outreach, training, education, advancement, and web development. Download High Res Download High Res