Polygonaceae

Western dock

Rumex occidentalis S.Watson

Family: Polygonaceae
Genus: Rumex

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Western dock (Rumex occidentalis) — FlowerPhoto: Matt Bowser, CC BY 4.0, from iNaturalist

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Common names

By language (1)

English: Western dock

Synonyms

Lapathum occidentale (S.Watson) Lunell
Rumex aquaticus subsp. fenestratus (Greene) Vorosch.
Rumex aquaticus subsp. occidentalis (Wats.) Hultén
Rumex aquaticus var. fenestratus (Greene) Dorn
Rumex bakeri Greene
Rumex fenestratus Greene
Rumex fenestratus var. labradoricus Rech.f.
Rumex gracilipes Greene
Rumex occidentalis var. labradoricus (Rech.f.) Lepage
Rumex occidentalis var. occidentalis

Flowers

In flower: June to July (from 11 flowering iNaturalist observations worldwide)

Photos

FlowerPhoto: Matt Bowser, CC BY 4.0, from iNaturalist
FlowerPhoto: Cameron Christopher Dunn, CC BY-SA 4.0, from iNaturalist
FlowerPhoto: elayc, CC BY 4.0, from iNaturalist
Photo: Matt Lavin, CC BY-SA 2.0, from Wikimedia Commons
Photo: Daniel Atha, CC0, from iNaturalist
Photo: Matt Lavin, CC BY-SA 2.0, from Wikimedia Commons
Photo: Sean Vanderluit, CC BY 4.0, from iNaturalist
Photo: Matt Lavin, CC BY-SA 2.0, from Wikimedia Commons
Photo: Joshua Smith, CC0, from iNaturalist
Photo: Matt Lavin, CC BY-SA 2.0, from Wikimedia Commons
Photo: Joshua, CC0, from iNaturalist
Photo: Matt Lavin, CC BY-SA 2.0, from Wikimedia Commons

More in Rumex

Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0). About our plant data.