[Buttercups and Crowsfeet: The Genus Ranunculus West of the Cascade Mountains of Oregon and Washington]

Field Buttercup, Corn Buttercup, Hungerweed

Ranunculus arvensis

Synonym: Ranunculus arvensis var. tuberculatus

Field Buttercup, Corn Buttercup, Hungerweed: Ranunculus arvensis (Synonym: Ranunculus arvensis var. tuberculatus)

Corn buttercup as seen on Upper Table Rock to the northwest of Medford, Oregon...........April 28, 2012.

Flower of Field Buttercup, Corn Buttercup, Hungerweed: Ranunculus arvensis (Synonym: Ranunculus arvensis var. tuberculatus) - Sepals of Field Buttercup, Corn Buttercup, Hungerweed: Ranunculus arvensis (Synonym: Ranunculus arvensis var. tuberculatus) - Flower of Field Buttercup, Corn Buttercup, Hungerweed: Ranunculus arvensis (Synonym: Ranunculus arvensis var. tuberculatus)

Leaves of Field Buttercup, Corn Buttercup, Hungerweed: Ranunculus arvensis (Synonym: Ranunculus arvensis var. tuberculatus) - Field Buttercup, Corn Buttercup, Hungerweed: Ranunculus arvensis (Synonym: Ranunculus arvensis var. tuberculatus) - Field Buttercup, Corn Buttercup, Hungerweed: Ranunculus arvensis (Synonym: Ranunculus arvensis var. tuberculatus)

Corn buttercup as seen on Upper Table Rock to the northwest of Medford, Oregon...........April 28, 2012.
Paul Slichter