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Malheur Experiment Station
Oregon State University

Ranunculus testiculatus

bur buttercup, hornseed buttercup (Ranunculus testiculatus)
Ranunculus testiculatus
Common Names bur buttercup, hornseed buttercup, curveseed butterwort, testiculate buttercup
Family Buttercup
Flower Color Yellowish
Plant Type Herb
Native No
Weed Yes

bur buttercup, hornseed buttercup (Ranunculus testiculatus)
bur buttercup, hornseed buttercup (Ranunculus testiculatus)
bur buttercup, hornseed buttercup (Ranunculus testiculatus)
bur buttercup, hornseed buttercup (Ranunculus testiculatus)
bur buttercup, hornseed buttercup (Ranunculus testiculatus)
bur buttercup, hornseed buttercup (Ranunculus testiculatus)
bur buttercup, hornseed buttercup (Ranunculus testiculatus)
bur buttercup, hornseed buttercup (Ranunculus testiculatus)
bur buttercup, hornseed buttercup (Ranunculus testiculatus)
bur buttercup, hornseed buttercup (Ranunculus testiculatus)
bur buttercup, hornseed buttercup (Ranunculus testiculatus)
bur buttercup, hornseed buttercup (Ranunculus testiculatus)
bur buttercup, hornseed buttercup (Ranunculus testiculatus)

Bur Buttercup or hornseed buttercup is a common weed in the north western states, but is native to southeastern Europe. It only threatens small grain crops, and is toxic to sheep. The fruit that grows on bur buttercup, is commonly known by the little round balls that stick to shoe laces with there velcrowish type spines.


For additional information please send an e-mail request to:
Dr. Clinton C. Shock
Clinton.Shock@oregonstate.edu

Malheur Agricultural Experiment Station
595 Onion Avenue
Ontario, OR 97914
(541) 889-2174
FAX (541) 889-7831

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