UW Burke Herbarium species comparison

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Polygonum parryi

Polygonum minimum

Parry's knotweed, prickly knotweed

leafy dwarf knotweed, zigzag knotweed

Polygonum parryi

Polygonum minimum
Flowering time June-July July-September
Habitat Vernal pools, seasonally damp ground at low elevations. Open or semi-barren soil in the alpine and subalpine.
Distribution
Occurring in the east end of the Columbia River Gorge in Washington; south-central Washington to California.
[WildflowerSearch map]
[BONAP county map]
Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains.
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[BONAP county map]
Origin Native Native
Conservation status Threatened in Washington (WANHP) Not of concern
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. nuttallii, P. paronychia, P. parryi, 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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