WHERE’S WILDLIFE • WILDFLOWER FIELD GUIDE

Rope Dodder

Cuscuta glomerata

Pronounced (approximate): kus-KOO-tah gloh-mer-AY-tah

Tiny white flowers form dense rope-like masses around host stems. Slender twining stems attach to another plant.

Rope Dodder (Cuscuta glomerata): dense white flowers wrapped around host stem. Tap the photo to open the gallery.

NATIVE • NORTH AMERICA

At a glance

Family Convolvulaceae
Life cycle Annual parasitic vine
Blooms Summer–early fall
Height Twines around host stems; height varies with the host
Habitat Moist prairies, wet meadows, and wetland margins

Common names
Rope Dodder

Bloom timing and height vary with location. Native status refers to North America; see the regional range below.

Sightings map

Explore reported observations. Sightings are not a complete range map.

How to recognize it

Key identification clues

  • Tiny white flowers form dense rope-like masses around host stems.
  • Slender twining stems attach to another plant.
  • The dodder lacks normal green foliage; visible broad leaves belong to its host.

Where and when to look

Moist prairies, wet meadows, and wetland margins. Flowering season: summer–early fall.

Compare similar plants

Photograph both the dense flower clusters and their host. The rope-like inflorescences are a useful clue among dodders.

A closer look

Flower details

Tiny white flowers form dense rope-like masses around host stems.

Leaves & stems

The dodder lacks normal green foliage; visible broad leaves belong to its host.

Whole plant & habitat

Look for annual parasitic vine growth in moist prairies, wet meadows, and wetland margins. Pair close views with a photograph of the whole plant.

Field photographs

9 field photographs. Select a photograph to enlarge it; use Load more photos to see the rest.

Range & sightings

Native to the central and east-central United States.

Reported U.S. native distribution
AR, IL, IN, IA, KS, KY, LA, MI, MN, MS, MO, NE, ND, OH, OK, SD, TN, TX, WI

State records describe documented distribution, not presence in every county. The observation map shows reported sightings and may include cultivated plants.

Observation maps show submitted records, not every place the plant occurs. Follow local access rules when visiting a site.

Keep learning

Practice recognizing Rope Dodder in the flower quiz, or compare it with other plants in the guide.

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