Name | Penstemon unilateralis Rydberg |
Authorship | Rydberg |
Rank | Species |
Placed in | Penstemon Schmidel |
Citation | 1906 Bull. Torrey Bot. Club 33: 150 |
Holdings | 47 Specimens held in the Harvard University Herbaria identified as Penstemon unilateralis Rydberg |
Identification made in | [no date] (28), 1921 (1), 1930 (18) |