UW Burke Herbarium species comparison

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Polygonum parryi

Polygonum bidwelliae

Parry's knotweed, prickly knotweed

Polygonum parryi

Polygonum bidwelliae
Flowering time June-July
Habitat Vernal pools, seasonally damp ground at low elevations.
Distribution
Occurring in the east end of the Columbia River Gorge in Washington; south-central Washington to California.
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[BONAP county map]
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[BONAP county map]
Origin Native
Conservation status Threatened in Washington (WANHP)
Sibling taxa
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
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. ramosissimum, P. sawatchense, P. spergulariiforme
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Unless otherwise noted, all data comes from the University of Washington's Burke Herbarium.



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