UW Burke Herbarium species comparison

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Polygonum achoreum

Polygonum ramosissimum

Blake's knotweed

Polygonum achoreum

Polygonum ramosissimum
Flowering time July-September
Habitat Disturbed areas, often where wet, from low to middle elevations.
Distribution
[WildflowerSearch map]
[BONAP county map]
Occurring chiefly east of the Cascades crest in Washington; widely distributed throughout North America.
[WildflowerSearch map]
[BONAP county map]
Origin Native Native
Conservation status Not of concern Not of concern
Sibling taxa
P. austiniae, P. aviculare, P. californicum, P. douglasii, P. erectum, P. fowleri, P. majus, P. minimum, P. nuttallii, P. paronychia, P. parryi, P. polygaloides, P. ramosissimum, P. sawatchense, P. spergulariiforme
P. achoreum, P. austiniae, P. aviculare, P. californicum, P. douglasii, P. erectum, P. fowleri, P. majus, P. minimum, P. nuttallii, P. paronychia, P. parryi, P. polygaloides, P. sawatchense, P. spergulariiforme
Subordinate taxa
P. ramosissimum ssp. prolificum, P. ramosissimum ssp. ramosissimum
Web links 
Unless otherwise noted, all data comes from the University of Washington's Burke Herbarium.



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Choose a data source: Flora of North America, OregonFlora, UW Burke Herbarium

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