WSU Extension

Hortsense

Weeds
 
Annual bluegrass 
Barnyardgrass 
Bentgrass, creeping 
Bermudagrass 
Bittercress (Shotweed, Hairy bittercress) 
Bittersweet nightshade (European bittersweet) 
Black medic 
Blackberry (Himalayan, Evergreen, Pacific) 
Blue mustard (Purple mustard, Tenella mustard) 
Brackenfern, western 
Buffalobur 
Bull thistle 
Buttercup, creeping 
Canada thistle 
Catchweed bedstraw (Cleavers) 
Catsear, common (False dandelion) 
Chickweed, common and mouseear 
Clover 
Comfrey 
Crabgrass 
Dandelion 
Dock (Curly, Broadleaf) 
Dodder 
Downy brome (Cheatgrass, Downy chess) 
Dwarf mistletoes 
English daisy (Lawn daisy) 
English ivy 
Field bindweed (Wild morningglory) 
Field pennycress (Fanweed) 
Flixweed 
Foxtail (Green, Yellow, Bristly) 
Garden loosestrife 
Giant hogweed 
Goldenrods 
Groundsel, common 
Hawkweeds 
Hedge bindweed 
Henbit 
Herb Robert (Robert geranium, stinky Bob) 
Horsetails (Scouringrush) 
Horseweed (Marestail) 
Knapweeds 
Knotweeds (Bohemian, Giant, Japanese, Himalayan) 
Kochia 
Lambsquarters, common 
Liverworts 
Mallow, common (Cheeseweed, Buttonweed) 
Nightshades 
Oxalis (Creeping woodsorrel) 
Parrotfeather and Eurasian watermilfoil 
Pineappleweed 
Plantain (Broadleaf, Buckhorn) 
Poison hemlock 
Poison ivy and Poison oak 
Prickly lettuce (China lettuce) 
Prostrate knotweed 
Puncturevine (Tackweed, Goathead) 
Purple deadnettle (Red deadnettle) 
Purple loosestrife (Purple lythrum) 
Purslane, common 
Quackgrass 
Red sorrel (Sheep sorrel) 
Redroot pigweed (Rough pigweed) 
Redstem filaree (Stork's bill, Crane's bill) 
Reed canarygrass 
Russian thistle (Tumbleweed) 
Ryegrass, annual (Italian ryegrass) 
Salsify (Goatsbeard) 
Scotch broom 
Shepherd's-purse 
Smartweeds 
Sowthistle, annual and perennial 
Speedwells 
Spurges (Prostrate spurges) 
St. Johnswort, common (Goatweed, Klamathweed) 
Stinging nettle 
Tansy ragwort 
Tumblemustard (Jim Hill mustard) 
Velvetgrass (Common velvetgrass) 
Velvetleaf 
Water primrose 
Waterhemlock, western 
Yellow nutsedge 



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Caption: Field bindweed flowers and leaves
Photo by: D.G. Swan
  
Weeds : Field bindweed (Wild morningglory) : Convolvulus arvensis
(revision date: 6/9/2014)

Family: Convolvulaceae
Cycle: Perennial
Plant Type: Broadleaf

Use Integrated Pest Management (IPM) for successful weed management.

Biology
Field bindweed is a prostrate or twining weed which spreads by seed and by new plants arising from a perennial root system reaching ten feet or more in depth. The slender stems may reach six feet in length, running along the ground or climbing fences, crop plants, ornamentals, or other convenient supports. Leaves are alternate and generally arrowhead-shaped, with blunt to pointed tips. Leaves may reach up to two inches long. Pink to white, funnel-shaped flowers about an inch wide are produced on short stems from the leaf axils. Four dull brown to black seeds are produced in each small, round capsule. Buried seeds can remain viable for up to fifty years. Plants can regenerate from root pieces remaining more than five feet beneath the surface. Hedge bindweed (Calystegia sepium) is similar in growth habit, but is usually a more robust plant with large (up to 3 inches), pure white to pink flowers and deep green, heart-shaped leaves that reach 1 to 5 inches in length. SPECIAL INFORMATION: Cultural control measures often depend on depleting food reserves in the roots and may require several years to be effective. In WASHINGTON, field bindweed is designated as a Class 'C' noxious weed. In OREGON, it is designated as both a Class 'B' noxious weed and a target or 'T' weed subject to priority prevention and control. It is also on the Oregon noxious weed quarantine list, which prohibits sale, purchase, and transport of plants, seeds, and plant parts. Management may be required by law in your county. Consult your local Noxious Weed Control Board for more information.
Habitat
Field bindweed grows in waste areas and cultivated areas including fields and gardens. It most abundant in the western states, but is distributed throughout much of the U. S.

Management Options

Non-Chemical Management
  • Inorganic mulches, such as plastic, commercial "weed barrier" fabrics and other materials such as roofing paper, is an effective weed management option. Cover inorganic mulches with a thin layer of soil or organic mulch.
  • Cultivating wild morningglory will result in a garden full of the weed by cutting the roots and shoots into small sections which can grow many new plants.
Select non-chemical management options as your first choice!

Chemical Management

Apply according to label directions. Multiple applications will be necessary. Glyphosate products should be applied as spot treatments only! NOTE: Some ingredients listed here are only available in combination. Read the label carefully on combination products to make sure the product is suitable for your specific situation.

Landscape areas
  • glyphosate
Turf areas
  • products containing 2,4-D
  • triclopyr
Bare ground areas
  • glyphosate
  • products containing 2,4-D
  • triclopyr
Images

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Caption: Field bindweed flowers and leaves
Photo by: D.G. Swan
Caption: Field bindweed growing prostrate
Photo by: D.G. Swan
Caption: Field bindweed flower
Photo by: R. Parker
Caption: Field bindweed roots
Photo by: D.G. Swan