UW Burke Herbarium species comparison

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Polygonum achoreum

Polygonum parryi

Blake's knotweed

Parry's knotweed, prickly knotweed

Polygonum achoreum

Polygonum parryi
Flowering time June-July
Habitat Vernal pools, seasonally damp ground at low elevations.
Distribution
[WildflowerSearch map]
[BONAP county map]
Occurring in the east end of the Columbia River Gorge in Washington; south-central Washington to California.
[WildflowerSearch map]
[BONAP county map]
Origin Native Native
Conservation status Not of concern Threatened in Washington (WANHP)
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. polygaloides, P. ramosissimum, P. sawatchense, P. spergulariiforme
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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