| Taxon | Collector | Location | Type Status | Barcode | |
|---|---|---|---|---|---|
| Penstemon confusus M.E.Jones | B. F. Harrison 13302 with K. H. Thorne, 12 Jun 1980 | United States of America. Nevada. Lincoln Co. Lake Valley, 0.5 mile north of Dutch John Mountain. | 584983 |  | |
| Penstemon confusus M.E.Jones | K. H. Thorne 868 with B. F. Harrison, 08 May 1980 | United States of America. Nevada. Nye Co. Coal Valley, bajada on west side of Timber Mountain Pass. | 584986 |  | |
| Penstemon utahensis Eastw. | R. K. Gierisch 4157 04 Apr 1978 | United States of America. Arizona. Mohave Co. Lime Kiln Canyon. | 584959 |  | |
| Penstemon confusus M.E.Jones | A. Tiehm 3416 02 Jun 1977 | United States of America. Nevada. Lincoln Co. 1.5 road miles north of Caliente on highway 93. | 584994 |  | |
| Penstemon confusus M.E.Jones | M. E. Jones 1819 24 Jun 1880 | United States of America. Utah. Frisco. | 584964 |  | |
| Penstemon confusus M.E.Jones | E. J. Neese 16569 with J. E. Neese, 19 Apr 1985 | United States of America. Arizona. Mohave Co. Ca. 11 miles south-southeast of Mesquite, NV, in Lime Kiln Canyon. | 584960 |  | |
| Penstemon confusus M.E.Jones | A. P. Pinzl 9506 12 Jun 1991 | United States of America. Nevada. White Pine Co. White Pine Range, Cathedral Canyon, about 1/2 road mile northeast of Freedland Canyon turnoff. | 584987 |  | |
| Penstemon confusus M.E.Jones | S. L. Welsh 20482 21 May 1981 | United States of America. Utah. Beaver Co. Ca. 5 miles south-southwest of Frisco ghost town and 2 miles south-southwest of Squaw Peak. | 584961 |  | |
| Penstemon confusus M.E.Jones | S. Cox s.n. with Frank Smith, 27 Jun 1981 | United States of America. Utah. Beaver Co. Pine Valley. | 584963 |  | |
| Penstemon confusus M.E.Jones | K. H. Thorne 4715 with D. Nelson, 01 Jun 1986 | United States of America. Utah. Washington Co. Northwest slope of Bull Mountains, ca. 14 miles west of Enterprise, Pine Park turn-off. | 584965 |  | |
| Penstemon confusus M.E.Jones | E. J. Neese 15633 02 Jun 1984 | United States of America. Utah. Sevier Co. 7 airmiles southeast of Salina. | 584966 |  | |
| Penstemon confusus M.E.Jones | E. J. Neese 15689 04 Jun 1984 | United States of America. Utah. Iron Co. 4 miles east of Cedar City along Cedar Creek (Highway 14). | 584967 |  | |
| Penstemon confusus M.E.Jones | A. Cronquist 11960 30 May 1985 | United States of America. Utah. Millard Co. At the pass in the Confusion Range along U.S. Highway 6, ca. 105 road km west of Delta, and ca. 35 road km east of the Nevada line. | 584968 |  | |
| Penstemon confusus M.E.Jones | B. Neely 2093 with Jeanne Chambers, 28 May 1984 | United States of America. Utah. Millard Co. Antelope Valley, north of Wild Horse Range. | 584969 |  | |
| Penstemon confusus M.E.Jones | A. Taye 1932 23 May 1984 | United States of America. Utah. Piute Co. Tushar Mountains, Big Rock Candy Mountain. | 584970 |  | |
| Penstemon confusus M.E.Jones | L. C. Higgins 20368 with D. Atwood & S. Welsh, 04 Jun 1999 | United States of America. Utah. Iron Co. Pace Draw. | 584971 |  | |
| Penstemon confusus M.E.Jones | L. C. Higgins 20129 with D. Atwood & S. Welsh, 05 May 1999 | United States of America. Utah. Washington Co. South slope of Pine Valley Mountains. | 584972 |  | |
| Penstemon higginsii (Neese) N.H.Holmgren & N.D.Atwood | L. C. Higgins 14392 18 Jun 1984 | United States of America. Utah. Washington Co. Pine Valley Mountains, along Forsyth Creek, 3 miles south, Pine Valley. | 584973 |  | |
| Penstemon confusus M.E.Jones | M. J. Williams 80362 24 May 1980 | United States of America. Nevada. Lincoln Co. East of Highway 93, northeast of Caliente. About 1.1 miles east of Highway 93 on road to Beaver Dam State Park, turn north about 1/2 mile south of Peck. | 584978 |  | |
| Penstemon confusus M.E.Jones | M. J. Williams 8084 with Susan Cochrane & Arnold Tiehm, 09 May 1980 | United States of America. Nevada. Nye Co. Railroad Valley, 3.4 miles southwest of Lockes, northwest of Highway 6. | 584979 |  | |
| Penstemon confusus M.E.Jones | M. J. Williams 80 793 17 Jun 1980 | United States of America. Nevada. White Pine Co. Highway 50 northwest of Sacramento Pass. | 584980 |  | |
| Penstemon confusus M.E.Jones | M. J. Williams 8761 with Arnold Tiehm, 16 May 1987 | United States of America. Nevada. Lincoln Co. Spring Valley, north of Ursine on road to Eagle Valley Reservoir. | 584981 |  | |
| Penstemon confusus M.E.Jones | B. F. Harrison 13317 with K. H. Thorne, 13 Jun 1980 | United States of America. Nevada. White Pine Co. Spring Valley, 2.6 miles south of Majors Place, 2.1 miles west of US Highway 93. | 584984 |  | |
| Penstemon confusus M.E.Jones | B. F. Harrison 13317 with K. H. Thorne, 13 Jun 1980 | United States of America. Nevada. White Pine Co. Spring Valley, 2.6 miles south of Majors Place, 2.1 miles west of US Highway 93. | 584985 |  | |
| Penstemon confusus M.E.Jones | A. Tiehm 3416 02 Jun 1977 | United States of America. Nevada. Lincoln Co. 1.5 road miles north of Caliente on Highway 93. | 584990 |  | |
| Penstemon confusus M.E.Jones | L. M. Shultz 7108 with J. S. Shultz, 02 Jun 1983 | United States of America. Nevada. Lincoln Co. East of Deer Lodge Canyon in the Mahogany Mountains. | 584993 |  | |
| Penstemon confusus M.E.Jones | A. Tiehm 6910 16 May 1982 | United States of America. Nevada. Lincoln Co. Northeast end of the Pahranagat Range, 511 road miles southwest of highway 38 on road to Coal Valley. | 584995 |  | |
| Penstemon confusus M.E.Jones | A. Tiehm 7662 17 May 1983 | United States of America. Nevada. Lincoln Co. North end of the Meadow Valley Mountains, 13.9 road miles northeast of highway 93 on the road to Elgin, then 2 road miles south. | 584996 |  | |
| Penstemon confusus M.E.Jones | M. J. Williams 82 1621 with Arnold Tiehm, 18 Jun 1982 | United States of America. Nevada. Lincoln Co. 0.4 mile southeast of Panaca Summit, near State Route 319. | 584997 |  | |
| Penstemon confusus M.E.Jones | N. H. Holmgren 4166 with Patricia K. Holmgren, 06 Jun 1970 | United States of America. Nevada. White Pine Co. Egan Range, about 30 airline miles north of Ely. | 585000 |  | |
| Penstemon isophyllus B.L.Rob. | H. E. Seaton 172 05 Aug 1891 | Mexico. Mt. Orizaba. | 773114 |  | |
| Penstemon isophyllus B.L.Rob. | H. H. Iltis 1142 with Robert Koeppen Frank Iltis, 20 Aug 1960 | Mexico. Oaxaca. Terribly eroded and overgrazed slope below Pan-Am. Highway at Puerto Herrera (km 420), just nortwest of Vanhuitlan. | 773109 |  | |
| Penstemon isophyllus B.L.Rob. | F. Ventura A. 2111 15 Aug 1970 | Mexico. Puebla. Ciudad Serdán. | 773115 |  | |
| Penstemon isophyllus B.L.Rob. | L. W. Lenz 18708 27 Nov 1953 | United States of America. California. Rancho Santa Ana Botanic Garden. | 773107 |  | |
| Penstemon isophyllus B.L.Rob. | L. W. Lenz 18708 27 Nov 1953 | United States of America. California. Rancho Santa Ana Botanic Garden. | 773106 |  | |
| Penstemon isophyllus B.L.Rob. | L. W. Lenz 18708 27 Nov 1953 | United States of America. California. Rancho Santa Ana Botanic Garden. | 773108 |  | |
| Penstemon isophyllus B.L.Rob. | E. K. Balls B5426 07 Aug 1938 | Mexico. Veracruz. Los Molinos, Perote. | 773116 |  | |
| Penstemon isophyllus B.L.Rob. | E. Lehto L21998 with D. J. Pinkava, B. Parfitt & T. Reeves, 02 Aug 1977 | Mexico. Veracruz. Mex 150-D, 0.4 mile east of Puebla-Vera Cruz state line. | 773118 |  | |
| Penstemon isophyllus B.L.Rob. | C. G. Pringle 8568 13 Aug 1901 | Mexico. Puebla. Above Chalchicomula. | isotype | 130573 |  |
| Penstemon isophyllus B.L.Rob. | D. E. Breedlove 26743 01 Aug 1972 | Mexico. Oaxaca. 13 km north of Telixtlahuaca along road to Cuicatlán. | 773101 |  |