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Plant Database

Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.

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Polygonum heterosepalum

Polygonum heterosepalum M. Peck & Ownbey

Dwarf Desert Knotweed, Oddsepal Knotweed

Polygonaceae (Buckwheat family)

Synonym(s):

USDA Symbol: POHE2

USDA Native Status: L48 (N)

 

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Plant Characteristics

Duration: Annual
Habit: Herb
Fruit Type: Achene
Size Notes: Cushion-like, up to about 2 inches tall.

Bloom Information

Bloom Color: White , Pink
Bloom Time: Jun , Jul , Aug
Bloom Notes: Whitish with whitish or pink margins.

Distribution

USA: ID , NV , OR
Native Habitat: Dry waste ground, open flats in sagebrush plains, ponderosa pine forests.

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

Metadata

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

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