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Pronunciation: pol-IG-on-um saw-watch-EN-see
Common name: Sawatch knotweed
Family: Polygonaceae (Buckwheat)
Habitat: Dry forests, open rocky places to about 8500', Transverse and Peninsular Ranges
Blooming period: July to September
Name derivations: 1) Polygonum 2) sawatchense
Formerly Polygonum douglasii ssp. johnstonii