External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:283510-2
- Species Name
- Polygonum douglasii Greene, Bull. Calif. Acad. Sci. 1(3): 125 (1885).
- Publication
- Phytologia; Designed to Expedite Botanical Publication. New York
- Collation
- 68: 424
- Family as entered in IPNI
- Polygonaceae