| Taxon | Collector | Location | Type Status | Barcode | |
|---|---|---|---|---|---|
| Penstemon confusus var. glabripetalus M.E.Jones | G. H. Bentley 7 20 May 1916 | United States of America. Nevada. Nye Co. Vicinity of Currant. | 585025 |  | |
| Penstemon confusus var. glabripetalus M.E.Jones | D. D. Keck 623 24 Jun 1930 | United States of America. Nevada. White Pine Co. East base of Ward Mountain, south of Ely. | 585028 |  | |
| Penstemon confusus M.E.Jones var. confusus | N. D. Atwood 9356 10 Jun 1983 | United States of America. Utah. Washington Co. 6 miles south of Enterprise along Highway 18, east slope of Big Mountain, Dixie National Forest. | 584948 |  | |
| Penstemon confusus M.E.Jones var. confusus | N. D. Atwood 24670 28 May 1999 | United States of America. Utah. Millard Co. Middle Mountain, northwest end of Wah Wah Mountains. | 584953 |  | |
| Penstemon confusus M.E.Jones var. confusus | N. D. Atwood 24719 29 May 1999 | United States of America. Utah. Millard Co. Burbank Hills, 7.5 miles north of Big Jensen Pass. Northwest of Desert Range Exp. Station. | 584954 |  | |
| Penstemon confusus M.E.Jones var. confusus | N. D. Atwood 23543 20 May 1998 | United States of America. Utah. Juab Co. West of Yuba Reservoir. | 584951 |  | |
| Penstemon confusus M.E.Jones var. confusus | N. D. Atwood 1500 29 May 1968 | United States of America. Utah. Millard Co. 1 mile northeast of Garrison. | 584908 |  | |
| Penstemon confusus M.E.Jones var. confusus | N. D. Atwood 11107 30 May 1985 | United States of America. Utah. Beaver Co. 3 miles north of Beaver on Manderfield Road. | 584909 |  | |
| Penstemon confusus M.E.Jones var. confusus | N. D. Atwood 23579 22 May 1998 | United States of America. Utah. Juab Co. 37 miles west-northwest of Delta on road toward Topaz Mountain. | 584952 |  | |
| Penstemon confusus M.E.Jones var. confusus | N. D. Atwood 23497 with S. Welsh, 14 May 1998 | United States of America. Utah. Kane Co. Long Canyon. | 584950 |  | |
| Penstemon confusus M.E.Jones var. confusus | N. D. Atwood 21655 with S. Welsh & J. Spencer, 11 Apr 1997 | United States of America. Utah. Washington Co. 4 miles due west of Leeds along Leeds Creek road. Jones Hollow and vicinity. | 584949 |  | |
| Penstemon confusus M.E.Jones var. confusus | N. D. Atwood 1373 26 May 1968 | United States of America. Utah. Piute Co. Highway 22, mile post 3, east of Highway 89. | 584924 |  | |
| Penstemon confusus var. glabripetalus M.E.Jones | B. Maguire 25121 with Arthur H. Holmgren, 21 May 1945 | United States of America. Nevada. Nye Co. US 6, 5 miles south of White Pine-Nye Co. line. | 585026 |  | |
| Penstemon confusus M.E.Jones var. confusus | B. Maguire 25103 with Arthur H. Holmgren, 19 May 1945 | United States of America. Utah. Millard Co. East side of Wah Wah Range, head of Lawson Cove. | 584906 |  | |
| Penstemon confusus M.E.Jones var. confusus | B. Maguire 16585 06 May 1939 | United States of America. Nevada. Lincoln Co. 10 miles north of Pioche. | 585021 |  | |
| Penstemon confusus M.E.Jones var. confusus | B. Maguire 20883 19 Jun 1941 | United States of America. Utah. Millard Co. Warm Point Ridge, west end of Pine Valley, 5 miles west of headquarters of Desert Range Experiment Station. | 584905 |  | |
| Penstemon confusus M.E.Jones var. confusus | B. Maguire 25108 with Arthur H. Holmgren, 21 May 1945 | United States of America. Utah. Millard Co. Warm Point, near Desert Range Experiment Station. | 584907 |  | |
| Penstemon confusus M.E.Jones var. confusus | B. Franklin 4621 08 May 1987 | United States of America. Utah. Sevier Co. 4.5 miles east-northeast of Redmond. | 584955 |  | |
| Penstemon confusus M.E.Jones var. confusus | B. Franklin 7047 20 May 1990 | United States of America. Utah. Washington Co. Dixie National Forest. Ca. 1.5 miles east of Old Irontown. | 584957 |  | |
| Penstemon confusus M.E.Jones var. confusus | B. Franklin 4806 24 May 1987 | United States of America. Utah. Beaver Co. Indian Peak Range. | 584956 |  |