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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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Cuscuta polygonorum (Smartweed dodder)
Bruso, George H.

Cuscuta polygonorum

Cuscuta polygonorum Engelm.

Smartweed Dodder, Knotweed Dodder

Cuscutaceae (Dodder Family)



USDA Native Status: L48 (N), CAN (N)

This is a leafless, rootless, parasitic vine with twining thread-like stems yellow-green to bright orange. It lives on the juices of the host plant.


From the Image Gallery

2 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Vine
Breeding System: Flowers Bisexual
Inflorescence: Cyme
Fruit Type: Capsule

Bloom Information

Bloom Color: White
Bloom Notes: Flowers are 4 parted, sometimes creamy-white or very soft pink.


USA: AR , CT , DC , DE , IA , IL , IN , KS , KY , LA , MA , MD , ME , MI , MN , MO , ND , NE , NJ , NY , OH , OK , PA , RI , TN , TX , VA , WI

Additional resources

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


Record Modified: 2011-08-08
Research By: TWC Staff

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