• D. V. Clark 226, United States of America
• D. V. Clark 272, United States of America
• F. A. Barkley 2447, United States of America
• F. W. Pennell 20544, United States of America
• T. B. Holker s.n., United States of America
• T. B. Holker s.n., United States of America
• D. V. Clark 226, United States of America
• D. V. Clark 272, United States of America
• F. W. Pennell 15902, United States of America
• F. W. Pennell 20521, United States of America
• F. W. Pennell 20536a, United States of America
• F. W. Pennell 20546, United States of America
• R. J. Davis 3700, United States of America
• W. C. McCalla 4495, United States of America
• W. C. McCalla 4514, United States of America
• T. G. Call 345, United States of America
• T. G. Call 107, United States of America
• T. G. Call 106, United States of America
• T. G. Call 293, United States of America
• T. G. Call 296, United States of America
• T. G. Call 347, United States of America
• C. L. Hitchcock 18396, United States of America
• C. L. Hitchcock 18477, United States of America
• C. L. Hitchcock 18573, United States of America
• C. L. Hitchcock 18795, United States of America
• C. L. Hitchcock 18826, United States of America
• R. J. Davis 195b-37, United States of America
• C. L. Hitchcock 9100, United States of America
• C. L. Hitchcock 9117, United States of America
• C. L. Hitchcock 11523, United States of America
• C. L. Hitchcock 11580, United States of America
• A. Cronquist 7860, United States of America
• A. Cronquist 7887, United States of America
• R. J. Davis 15736, United States of America
• R. J. Davis 195a-37, United States of America
• R. J. Davis 427, United States of America
• R. J. Davis 433, United States of America
• F. H. Rose 1517, United States of America
• F. H. Rose 163, United States of America
• F. D. Kelsey s.n., United States of America
• W. H. Plummer 9, United States of America
• F. W. Pennell 15926, United States of America
• H. M. Tucker s.n., United States of America
• J. B. Leiberg 1232, United States of America
• T. G. Call 441, United States of America
• R. J. Davis 3063, United States of America
• C. L. Hitchcock 14378, United States of America
• C. L. Hitchcock 14483, United States of America
• C. L. Hitchcock 14358, United States of America
• C. L. Hitchcock 14590, United States of America
• C. L. Hitchcock 14623, United States of America
• C. L. Hitchcock 14941, United States of America
• C. L. Hitchcock 18030, United States of America
• C. L. Hitchcock 18050, United States of America
• See Collection Notes s.n., United States of America
• C. L. Hitchcock 15778, United States of America
• C. L. Hitchcock 15500, United States of America
• W. H. Baker 7893, United States of America
• W. H. Baker 8081, United States of America
• A. I. Mulford s.n., United States of America
• M. Murley 1677, United States of America
• C. L. Hitchcock 12655, United States of America
• J. H. Christ 10611, United States of America
• J. H. Christ 11252, United States of America
• J. H. Christ 14424, United States of America
• J. Macoun 11865, photo of type; North America
• F. H. Rose 4385, United States of America
• W. B. Anderson 6244, Canada
• J. H. Christ 2280, United States of America
• J. H. Christ 4306, United States of America
• W. B. Anderson 4499, Canada
• J. H. Christ 16829, United States of America
• J. H. Christ 7620, United States of America
• J. H. Christ 17042, United States of America
• B. T. Butler 1033, United States of America
• R. T. Shaw 259, Canada
• J. Macoun 24177, Canada
• R. J. Davis 1335, United States of America
• C. L. Hitchcock 18124, United States of America
• J. E. Kirkwood 1275, United States of America
• J. E. Kirkwood 1736, United States of America
• J. E. Kirkwood 2073, United States of America
• T. G. Call 354, United States of America
• T. G. Call 355, United States of America
• F. H. Rose 174, United States of America
• L. M. Umbach 214a, United States of America
• L. M. Umbach 101, United States of America
• L. F. Henderson 3171, United States of America
• G. B. Aiton 41, United States of America
• F. D. Kelsey s.n., United States of America
• J. M. Elrod 78, United States of America
• D. T. MacDougal 144, United States of America
• Q. Jones 146, United States of America
• J. H. Christ 10948, United States of America
• R. H. Doull 1, United States of America
• R. J. Davis 195b-37, United States of America
• H. D. D. Ripley 8194, United States of America
• Collector unspecified s.n., United States of America
• A. J. J. Breitung 16059, Canada
• J. H. Christ 1359, United States of America
• J. E. Kirkwood 1784, United States of America
• N. H. Holmgren 2737, United States of America
• N. B. Sanson 1099, Canada
• N. B. Sanson 1112, Canada
• W. B. Anderson 5987, Canada
• J. A. Calder 9129, Canada
• D. V. Clark 112, United States of America
• D. V. Clark 132, United States of America
• D. V. Clark 190, United States of America
• D. V. Clark 161, United States of America
• D. V. Clark 103G, United States of America
• D. V. Clark 112, United States of America
• D. V. Clark 132, United States of America
• D. V. Clark 229, United States of America
• D. V. Clark 229, United States of America
• D. V. Clark 247, United States of America
• D. V. Clark 247, United States of America
• D. V. Clark 275, United States of America
• D. V. Clark 275, United States of America
• D. V. Clark 337, United States of America
• D. V. Clark 507, United States of America
• C. L. Hitchcock 17815, United States of America
• F. W. Pennell 15899, United States of America
• F. W. Pennell 15907, United States of America
• F. W. Pennell 20570, United States of America
• F. W. Pennell 20577, United States of America
• F. W. Pennell 21292, United States of America
• F. W. Pennell 21292, United States of America
• F. W. Pennell 23525, United States of America
• F. W. Pennell 23645, United States of America
• M. J. Reed 20, United States of America
• M. Mooar 9171, United States of America
• H. Leithead 48, United States of America
• D. D. Keck 6547, United States of America
• K. H. Lackschewitz 1498, United States of America
• K. H. Lackschewitz 4475, United States of America
• K. H. Lackschewitz 4476, United States of America
• P. C. Lesica 4807, United States of America
• P. C. Lesica 4818, United States of America
• D. V. Clark 190, United States of America
• D. V. Clark 180, United States of America
• D. V. Clark 161, United States of America
• D. V. Clark 106, United States of America
• D. V. Clark 108, United States of America
• D. V. Clark 103G, United States of America
• D. V. Clark 338, United States of America
• D. V. Clark 338, United States of America
• D. V. Clark 383, United States of America
• D. V. Clark 463, United States of America
• R. L. Taylor 884, Canada
• N. H. Holmgren 2734, United States of America
• N. H. Holmgren 11797, United States of America
• A. R. Kruckeberg 4412, United States of America
• E. F. Evert 8054, United States of America
• J. G. Witt 1016, United States of America
• K. A. Vincent 4400, United States of America
• S. L. O'Kane, Magnoliophyta; North America
• J. Macoun 11865, isotype; North America
• S. Riley 2234, United States of America
• S. Riley 2294, United States of America
• P. C. Lesica 6267, United States of America
• W. H. Baker 16436, United States of America
• T. G. Call 357, United States of America
• R. J. Davis 3063, United States of America
• R. C. Barneby 18350, United States of America
• A. M. DeBolt 3737, United States of America
• C. L. Hitchcock 16127, United States of America
• See Collection Notes s.n., United States of America
• See Collection Notes s.n., United States of America
• D. H. Mansfield 08108b, United States of America
• P. C. Lesica 10664, United States of America
• R. McNeill 4575, United States of America
• R. McNeill 4575, United States of America
• P. C. Lesica 11290, United States of America
• S. Herzog 2015-14, United States of America
• N. H. Holmgren 16625, United States of America
• N. H. Holmgren 16624, United States of America
• N. H. Holmgren 16641, United States of America
• N. H. Holmgren 16628, United States of America
• N. H. Holmgren 16632, United States of America
• N. H. Holmgren 16633, United States of America
• R. A. Durham s.n., United States of America
• J. H. Christ 8104, United States of America
• J. H. Christ 11007, United States of America
• D. M. Henderson 1051, United States of America
• Z. W. Palmer s.n., Canada
• K. Pierson 88, United States of America
• Penstemon albertinus Greene
• B. A. Krukoff s.n., United States of America
• J. F. Macbride 357, United States of America
• J. F. Macbride 912, United States of America
• C. L. Hitchcock 16203, United States of America

• Penstemon albertinus Greene