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Penstemon cardinalis Wooton & Standl.
cardinal beardtongue Penstemon cardwellii Howell Cardwell's
beardtongue Penstemon carnosus Pennell fleshy beardtongue...
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sharpleaf penstemon Penstemon barrettiae — Barrett's
beardtongue Penstemon cardwellii — T.J.
Howell Cardwell's
beardtongue Penstemon palmeri — Palmer's penstemon...
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barrettiae is
included in
Penstemon subgenus Dasanthera,
along with P.
cardwellii, P. davidsonii, P. ellipticus, P. fruticosus, P. lyallii, P. mont****...
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included in
Penstemon subgenus Dasanthera,
along with P. barrettiae, P.
cardwellii, P. davidsonii, P. ellipticus, P. fruticosus, P. lyallii, P. mont****...
-
included in
Penstemon subgenus Dasanthera,
along with P. barrettiae, P.
cardwellii, P. davidsonii, P. ellipticus, P. lyallii, P. mont****, P. newberryi,...
-
included in
Penstemon subgenus Dasanthera,
along with P. barrettiae, P.
cardwellii, P. davidsonii, P. ellipticus, P. fruticosus, P. lyallii, P. mont****...
