| Name | Townsendia exscapa (Richardson) Porter |
| Authorship | (Richardson) Porter |
| Rank | Species |
| Placed in | Townsendia Hooker |
| Citation | 1894 Mem. Torrey Bot. Club 5: 321 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Townsendia exscapa (Richardson) Porter |
| Identification made in | 1956 (1) |
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