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Penstemon caespitosus, commonly known as mat penstemon, is a summer blooming perennial flower in the large Penstemon genus. It is a widespread plant from...

as published by Asa Gray in 1878. It was later reclassified as Penstemon caespitosus var. thompsoniae by Aven Nelson, and then elevated to full species...

This is a list of the species in the genus Penstemon. They are commonly called penstemons or beardtounges in English and species will often have a common...

described four species:Chaenactis brachypappus A. Gray (Asteraceae), Penstemon caespitosus var. incanus A. Gray (Scrophulariaceae), Symphoricarpos longiflorus...

caesius L bluish-gray; lavender blue; cutting Eucalyptus caesia H DS C caespitosus L caespitose, from caespes, turf. (Also caespititius.) Pilosella caespitosa...