Penstemon 'Breitenbush Blue' Jane Hendrix |
Penstemon 'Mesa' Brent Hine |
Penstemon ?uintahensis Kathleen Swick |
Penstemon X strictus,barbatus,smallii Ginny Maffitt, Sherwood,OR |
Penstemon acaulis Robert D. Dorn |
Penstemon acaulis Robert D. Dorn |
Penstemon acaulis Jim Hatchett |
Penstemon acuminatus Gary A. Monroe |
Penstemon acuminatus Margaret Williams |
Penstemon alamosensis Jane Hendrix |
Penstemon albidus Raven Ranch |
Penstemon albidus Raven Ranch |
Penstemon ambiguus W.L. Wagner |
Penstemon anguineus Brother Alfred Brousseau |
Penstemon angustifolius Skowron |
Penstemon angustifolius Jane Hendrix |
Penstemon attenuatus (yellow form) Jane Hendrix |
Penstemon barbatus Jane Hendrix |
Penstemon barbatus 'Praecox Nanus' Jane Hendrix |
Penstemon barbatus ssp. torreyi Jane Hendrix |
Penstemon bracteatus Alan Petersen |
Penstemon breviculus Jane Hendrix |
Penstemon caespitosus Jane Hendrix |
Penstemon caespitosus var. albus Bob Skowron |
Penstemon californicus Bob Skowron |
Penstemon cardwellii Louise Parsons |
Penstemon carnosus Bob Skowron |
Penstemon clutei Bob Skowron |
Penstemon confertus Jane Hendrix |
Penstemon crandallii Jane Hendrix |
Penstemon cyananthus Gerard van Buiten |
Penstemon cyananthus var subglaber Louise Parsons |
Penstemon cyanathus Gerard van Buiten |
Penstemon davidsonii v menziesii Alan Petersen |
Penstemon davidsonii v menziesii Jim Hatchett |
Penstemon davidsonii v menziesii(with a little help fromLeweesia tweedyi) Jim Hatchett |
Penstemon davidsonii var menziesi Bob Skowron |
Penstemon deustus Jane Hendrix |
Penstemon deustus var. pedicellatus Gary A. Monroe |
Penstemon digitalis Husker Red Bob Skowron |
Penstemon dolius Margaret Williams |
Penstemon duchesnensis Bob Skowron |
Penstemon eatonii Jane Hendrix |
Penstemon eatonii Alan Petersen |
Penstemon eriantherus Day-Skowron |
Penstemon eriantherus Jane Hendrix |
Penstemon eriantherus var. redactus Louise Parsons |
Penstemon fruticosu var scouleri albus Bob Skowron |
Penstemon fruticosus Jane Hendrix |
Penstemon glaber var. alpinus Bob Skowron |
Penstemon gracilentus John P Weiser |
Penstemon gracilentus John P Weiser |
Penstemon gracilentus John P Weiser |
Penstemon gracilentus John P Weiser |
Penstemon gracilentus John P Weiser |
Penstemon gracilentus John P Weiser |
Penstemon gracilis Todd Boland |
Penstemon grahamii J.S. Peterson |
Penstemon grahamii Graham Nicholls |
Penstemon hallii Bob Skowron |
Penstemon hallii Jane Hendrix |
Penstemon harbourii Bob Skowron |
Penstemon harbourii Jane Hendrix |
Penstemon hirsutus var pygmaeus Bob Skowron |
Penstemon hirsutus var. pygmaeus f. albus Julie McIntosh Shapiro |
Penstemon humilis Gerard van Buiten |
Penstemon humilis Gerard van Buiten |
Penstemon humilis Gerard van Buiten |
Penstemon larcifolius var larcifolius Bob Skowron |
Penstemon lariciflius var exilifolius Bob Skowron |
Penstemon lentus Alan Petersen |
Penstemon mensarum Jane Hendrix |
Penstemon montanus (Subgenus Dasanthera) Louise Parsons |
Penstemon nitidus Bob Skowron |
Penstemon pachyphyllus Margaret Williams |
Penstemon pachyphyllus var. congestus Gary A. Monroe |
Penstemon palmeri Russell and Cathy Wilson |
Penstemon palmeri Russell and Cathy Wilson |
Penstemon palmeri Julie McIntosh Shapiro |
Penstemon payettensis Bob Skowron |
Penstemon paysoniorum Day-Skowron |
Penstemon pinifolius Jane Hendrix |
Penstemon pinifolius 'Mersea Yellow' Jane Hendrix |
Penstemon procerus var procerus Bob Skowron |
Penstemon pseudoparvus Jane Hendrix |
Penstemon pseudospectabilis Jane Hendrix |
Penstemon roezlii Gary A. Monroe |
Penstemon rydbergii Jane Hendrix |
Penstemon scapoides Julie McIntosh Shapiro |
Penstemon secundiflorus Bob Skowron |
Penstemon secundiflorus Jane Hendrix |
Penstemon serrulatus Todd Boland |
Penstemon speciosus John P Weiser |
Penstemon speciosus John P Weiser |
Penstemon speciosus John P Weiser |
Penstemon speciosus John P Weiser |
Penstemon speciosus John P Weiser |
Penstemon speciosus John P Weiser |
Penstemon speciosus John P Weiser |
Penstemon strictus Bob Skowron |
Penstemon strictus Jane Hendrix |
Penstemon subserratus Brent Hine |
Penstemon subulatus Klaus & Jane Hendrix |
Penstemon teucrioides unknown |
Penstemon teucrioides Jim Hatchett |
Penstemon thompsoniae Bob Skowron |
Penstemon utahensis Jane & Klaus Hendrix |
Penstemon utahensis Bob Skowron |
Penstemon virens Bob Skowron |
Penstemon virgatus Jane Hendrix |
Penstemon virgatus subsp. asa-grayi Bob Skowron |
Penstemon whipleanus Gerard van Buiten |
Penstemon whipleanus Gerard van Buiten |
Penstemon whippleanus Bob Skowron |
Penstemon whippleanus Bob Skowron |
Penstemon whippleanus Jane Hendrix |
Penstemon yampaensis Jim Hatchett |