As classified in WFO snapshot
December 2023
latest classification for this taxon
subspecies
Polygonum douglasii subsp. johnstonii
This subspecies name was first published in Madroño 31(4): 250. 1984
At the time of this classification snapshot, this subspecies name was accepted by WFO (placed as the accepted name of a taxon). Its description and other taxonomic data can be found on World Flora Online, id: wfo-0000489505.
Synonyms of Polygonum douglasii subsp. johnstonii
| Name | Author | Protologue | Nomenclator | WFO link |
|---|---|---|---|---|
| Polygonum sawatchense | Bull. Torrey Bot. Club 20: 213 (1893) | wfo-0000489000 | ||
| Polygonum douglasii var. johnstonii | Man. S. Calif. Bot. : 597 (1935) | wfo-0000490651 |