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Botanical family
Scrophulariaceae
Every accepted taxon in Scrophulariaceae with a record in the Rootfast catalogue.
- Matching taxa
- 1,171
- Page
- 20 / 24
Showing 951–1,000 of 1,171.
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Penstemon pudicus Reveal & Beatley PEPU11Kawich Range beardtongue -
Penstemon pumilus Nutt. PEPU12Salmon River beardtongue -
Penstemon purpusii Brandegee PEPU4Snow Mountain beardtongue -
Penstemon radicosus A. Nelson PERA2matroot penstemon -
Penstemon ramosus Crosswh. PERA8lanceleaf beardtongue -
Penstemon rattanii A. Gray PERA3Rattan's beardtongue - Penstemon rattanii A. Gray ssp. kleei (Greene) D.D. Keck PERAKSanta Cruz Mountains beardtongue
- Penstemon rattanii A. Gray ssp. rattanii PERAR2Rattan's beardtongue
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Penstemon retrorsus Payson ex Pennell PERE7Adobe Hills beardtongue -
Penstemon rhizomatosus N.H. Holmgren PERH6Scheel Creek beardtongue -
Penstemon richardsonii Douglas ex Lindl. PERIcutleaf beardtongue - Penstemon richardsonii Douglas ex Lindl. var. curtiflorus (D.D. Keck) Cronquist PERIC3cutleaf beardtongue
- Penstemon richardsonii Douglas ex Lindl. var. dentatus (D.D. Keck) Cronquist PERID3cutleaf beardtongue
- Penstemon richardsonii Douglas ex Lindl. var. richardsonii PERIRRichardson's penstemon
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Penstemon roezlii Regel PERO12Roezl's penstemon -
Penstemon rostriflorus Kellogg PERO10Bridge penstemon -
Penstemon rubicundus D.D. Keck PERU5Wassuk Range beardtongue -
Penstemon rupicola (Piper) Howell PERUcliff beardtongue -
Penstemon rydbergii A. Nelson PERYRydberg's penstemon - Penstemon rydbergii A. Nelson var. aggregatus (Pennell) N.H. Holmgren PERYAmeadow beardtongue
- Penstemon rydbergii A. Nelson var. oreocharis (Greene) N.H. Holmgren PERYOherbaceous penstemon
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Penstemon rydbergii A. Nelson var. rydbergii PERYRswollen penstemon -
Penstemon saxosorum Pennell PESA2upland beardtongue -
Penstemon scapoides D.D. Keck PESC2pinyon beardtongue -
Penstemon scariosus Pennell PESC5White River beardtongue - Penstemon scariosus Pennell var. albifluvis (England) N.H. Holmgren PESCAWhite River beardtongue
- Penstemon scariosus Pennell var. cyanomontanus Neese PESCCNeese's Blue Mountain beardtongue
- Penstemon scariosus Pennell var. garrettii (Pennell) N.H. Holmgren PESCGGarrett's beardtongue
- Penstemon scariosus Pennell var. scariosus PESCSWhite River beardtongue
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Penstemon secundiflorus Benth. PESE11sidebells penstemon -
Penstemon seorsus (A. Nelson) D.D. Keck PESE12shortlobe penstemon -
Penstemon sepalulus A. Nelson PESE13littlecup beardtongue -
Penstemon serrulatus Menzies ex Sm. PESE5serrulate penstemon -
Penstemon smallii A. Heller PESMSmall's beardtongue -
Penstemon spatulatus Pennell PESP2Wallowa beardtongue -
Penstemon speciosus Douglas ex Lindl. PESProyal penstemon -
Penstemon spectabilis Thurb. ex A. Gray PESP3showy penstemon - Penstemon spectabilis Thurb. ex A. Gray ssp. spectabilis PESPS2showy penstemon
- Penstemon spectabilis Thurb. ex A. Gray ssp. subviscosus D.D. Keck PESPSshowy penstemon
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Penstemon stenophyllus (A. Gray) Howell PEST6Sonoran beardtongue -
Penstemon stephensii Brandegee PESTStephens' penstemon -
Penstemon strictiformis Rydb. PEST9Mancos penstemon -
Penstemon strictus Benth. PEST2Rocky Mountain penstemon -
Penstemon subglaber Rydb. PESU2smooth penstemon -
Penstemon subserratus Pennell PESU6finetooth beardtongue -
Penstemon subulatus M.E. Jones PESU7hackberry beardtongue -
Penstemon sudans M.E. Jones PESU10Susanville beardtongue -
Penstemon superbus A. Nelson PESU8superb beardtongue -
Penstemon tenuiflorus Pennell PETE4eastern whiteflower beardtongue -
Penstemon tenuis Small PETE3sharpsepal beardtongue