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knotweed

Douglas knotweed

Polygonum aviculare

Polygonum douglasii

Distribution
[WildflowerSearch map]
[BONAP county map]
[WildflowerSearch map]
[BONAP county map]
Discussion

[This taxon will be assessed for treatment in volume 3 of Flora of Oregon, which is not yet published.]

[This taxon will be assessed for treatment in volume 3 of Flora of Oregon, which is not yet published.]

Source in prep. in prep.
Sibling taxa
P. achoreum, P. austiniae, P. californicum, P. cascadense, P. douglasii, P. erectum, P. gabrielae, P. heterosepalum, P. majus, P. minimum, P. nuttallii, P. paronychia, P. parryi, P. polygaloides, P. ramosissimum, P. sawatchense, P. shastense, P. spergulariiforme
P. achoreum, P. austiniae, P. aviculare, P. californicum, P. cascadense, P. erectum, P. gabrielae, P. heterosepalum, P. majus, P. minimum, P. nuttallii, P. paronychia, P. parryi, P. polygaloides, P. ramosissimum, P. sawatchense, P. shastense, P. spergulariiforme
Subordinate taxa
P. aviculare ssp. aviculare, P. aviculare ssp. buxiforme, P. aviculare ssp. depressum, P. aviculare ssp. neglectum
Synonyms Polygonum douglasii ssp. douglasii, Polygonum douglasii var. douglasii, Polygonum douglasii var. latifolium
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