Native Plants

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Polygonum cascadense

Polygonum cascadense W.H. Baker

Cascade Knotweed

Polygonaceae (Buckwheat family)

Synonym(s):

USDA Symbol: POCA9

USDA Native Status: L48 (N)

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Plant Characteristics

Duration: Annual
Habit: Herb
Fruit Type: Achene
Size Notes: Up to about 6 inches tall.

Bloom Information

Bloom Color: White
Bloom Time: Jun , Jul , Aug , Sep

Distribution

USA: OR
Native Habitat: Dry, usually rocky slopes, often on serpentine.

Web Reference

Webref 3 - Flora of North America (2014) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Polygonum cascadense in USDA Plants
FNA: Find Polygonum cascadense in the Flora of North America (if available)
Google: Search Google for Polygonum cascadense

Metadata

Record Modified: 2020-11-12
Research By: CBR

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