| Name | Galium trifidum subsp. columbianum (Rydberg) Hultén |
| Authorship | (Rydberg) Hultén bis |
| Rank | Subspecies |
| Placed in | Galium trifidum Linnaeus |
| GUID | urn:lsid:ipni.org:names:107228-2 |
| Holdings | 81 Specimens held in the Harvard University Herbaria identified as Galium trifidum subsp. columbianum (Rydberg) Hultén |
| Identification made in | [no date] (66), 1974 (14), 2017 (1) |
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