Calflora: Polygonum convolvulus

Polygonum convolvulus L.

black bindweed

Polygonum convolvulus, a dicot, is an annual herb that is not native to California; it was introduced from elsewhere and naturalized in the wild.

Communities:	weed, species characteristic of disturbed places
Habitat:	disturbed [Walker]
Wetlands:	[U.S. Fish & Wildlife Service.]
Elevation:	between 0 and 3280 feet
Family:	POLYGONACEAE
Related:	See a list of other species in the genus Polygonum found in California.

Name Status:

Accepted by PLANTS + JM93
TJM2: accepted name:		Fallopia convolvulus

NOTE: Polygonum convolvulus is not an active name in the Calflora species table.

Plant
Characteristics
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Observation Hotline
including observations with photos

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.

Alameda: 2 / 2 CCH Alpine: 1 / 0 CCH Butte: 5 / 4 CCH Del Norte: 1 / 0 CCH El Dorado: 2 / 1 CCH Humboldt: 6 / 6 CCH Kern: 1 / 0 CCH Lake: 4 / 3 CCH Lassen: 1 / 1 CCH Los Angeles: 5 / 5 CCH Mendocino: 1 / 0 CCH Mono: 2 / 1 CCH Monterey: 1 / 0 CCH Modoc: 3 / 3 CCH Mariposa: 5 / 5 CCH Marin: 2 / 1 CCH Plumas: 3 / 2 CCH Riverside: 1 / 1 CCH Sacramento: 1 / 0 CCH Santa Barbara: 1 / 0 CCH San Bernardino: 16 / 16 CCH Santa Clara: 1 / 0 CCH Santa Cruz: 1 / 0 CCH San Diego: 4 / 3 CCH San Francisco: 4 / 1 CCH Shasta: 1 / 1 CCH Siskiyou: 9 / 9 CCH San Mateo: 3 / 2 CCH Sonoma: 1 / 0 CCH Trinity: 1 / 1 CCH Yuba: 3 / 3 CCH

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

Information about Polygonum convolvulus from other sources:

Photos on Picasa / Flickr / Google Images
website references on Google
USDA PLANTS Profile (POCO10)
Nursery availability and horticultural info (what grows with this plant?) on CNPLX
UC Integrated Pest Management Weed Photo Gallery
(profile of this plant as an agricultural weed)
Original Publication citation. on the International Plants Names Index
Search efloras.org (Flora of North America)
Search the Lady Bird Johnson Wildflower Center Native Plant Database