Calflora: Polygonum aviculare ssp. depressum

Polygonum aviculare L. ssp. depressum (Meisn.) Arcangeli

prostrate knotweed

Polygonum aviculare ssp. depressum, a dicot, is an annual or perennial herb that is not native to California.

Communities:	weed, species characteristic of disturbed places, wetland-riparian
Habitat:	disturbed [Walker]
Wetlands:	Equally likely to occur in wetlands or non wetlands [U.S. Fish & Wildlife Service.]

Family:	POLYGONACEAE
Related:	See a list of other species in the genus Polygonum found in California.
	See the more inclusive parent record Polygonum aviculare.

Accepted by TJM2

Other Names:

TJM2:

Polygonum arenastrum

Bloom Period

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Distribution by County:

See a detailed Distribution Grid of this plant in California.

A shaded county indicates that there are ocurrence records of this plant within the county.

Hover the mouse over the map to see county names. Click to view records from that county.

	There are specimen records from this county in an herbarium.
	There are documented records, vouchered or confirmed by an expert.
	There are reported records.
	There are reported records available indirectly (eg. in botanical literature).

Records by County, with approximate record counts in the form: TOTAL / CCH. Click county name to view records.

CCH: records provided by the participants of the Consortium of California Herbaria.

Information about Polygonum aviculare ssp. depressum from other sources:

Photos on Picasa / Flickr / Google Images
website references on Google
Nursery availability and horticultural info (what grows with this plant?) on CNPLX
2012 Jepson Manual Treament from the Jepson Herbarium,
University of California, Berkeley
Search efloras.org (Flora of North America)