WSU Whatcom County Extension

Integrated Pest Management for Blueberries

Creeping Buttercup

(Ranunculus repens)

Perennial Broadleaves

 

Creeping Buttercup

 

Habitat Characteristics

Found in moist areas. Common weed of turf grass, landscapes, and pastures.

 

Identification

A low growing perennial that spreads. Hairy stems produce new plants at the nodes where they touch the ground. Leaves are hairy and on relatively long petioles. The leaf is divided into 3 lobes, which are deeply cleft. Flower stems are erect with hairy stems at the base and sometimes hairy above. Flowers are composed of five to ten bright shiny yellow petals, broadly rounded at the apex. Flowers are up to an inch in diameter and have several yellow stamens in the middle. Seeds are enclosed within the burr-like fruit; rounded seed heads contain numerous seeds.

 

Buttercup

 

Life History

Plants can over winter as corms. Reproduction is by seed or by rooting at stem nodes. Vegetative growth occurs in the spring. Flowers appear from April to July. Plants die back to the corm in winter.

 

Thresholds and Management

Cultural Techniques

      - Frequent cultivation in hot weather to allow roots to dry out.

Chemical Techniques

      - See Herbicide Efficacy Table (pdf)

 

Web References

USDA – NRCS Plant Profile, Creeping Buttercup
http://plants.usda.gov/java/profile?symbol=RARE3&photoID=rare3_1h.jpg

Invasive Species, The Source for Information and Images of Invasive & Exotic Species, Creeping Buttercup
http://www.invasive.org/browse/subject.cfm?sub=6291

B.C. Ministry of Agriculture and Lands, Creeping Buttercup
http://www.agf.gov.bc.ca/cropprot/weedguid/butter.htm

Weeds B.C., Creeping Buttercup
http://www.weedsbc.ca/weed_desc/cr_butter.html

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WSU Whatcom County Extension • 1000 N. Forest St., Bellingham, WA 98225 • 360-676-6736 • whatcom@wsu.edu