Bitter Dock (Rumex obtusifolius) Linnaeus, 1753

 

Synonyms: Acetosa obtusifolia, Lapathum obtusifolium, Lapathum sylvestre, Rumex agrestis, Rumex crispatulus, Rumex laevigatus, Broad-leaved Dock, Bluntleaf Dock

 

 

Rumex obtusifolius is a perennial herb native to Europe, and introduced to the Americas, Australia, New Zealand, and Japan. It is usually found in fields, meadows, disturbed sites, roadsides, and shorelines. Bitter Dock flowers from June through September. It is considered an invasive species in parts of its non-native range.

 

		D49835 Bitter Dock (Rumex obtusifolius)* Bruce Peninsula National Park Ontario, Canada Copyright © Michael Patrikeev All Rights Reserved
		D49827 Bitter Dock (Rumex obtusifolius)* Bruce Peninsula National Park Ontario, Canada Copyright © Michael Patrikeev All Rights Reserved

 

		D49829 Bitter Dock (Rumex obtusifolius)* Bruce Peninsula National Park Ontario, Canada Copyright © Michael Patrikeev All Rights Reserved
* photographed outside of the native rang
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