Geum rivale L.
Source: USDA Plants_111306
Family: Rosaceae
Geum rivale image
Paul Rothrock  
Stems 3-6 dm from a short, stout rhizome, sparsely hirsutulous; basal lvs to 3 dm, with 3(5) principal lfls, the terminal one broadly obovate or subrotund, serrate, ±3-lobed, the others adjacent, narrowly obovate; additional lateral lfls remote and irregular; cauline lvs much smaller, reduced above, variously toothed to divided; fls several, campanulate, nodding, the pedicels eventually elongate; sep purple, ascending or erect, 7-10 mm; bractlets linear, 3-4 mm; pet yellowish, suffused with purple and purple-veined, usually a little shorter than the sep; style at anthesis jointed near the middle, the distal segment plumose, to 8 mm at maturity; achenes spreading, with decurved styles; 2n=42. Swamps and wet meadows; Nf. and Que. to Alta., s. to N.J., Pa., Ind., Mich., and Calif. May- July. G. pulchrum Fernald, with clear yellow pet conspicuously exceeding the sep, has been thought to be a hybrid with G. macrophyllum, but may be merely a form of G. rivale.

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

©The New York Botanical Garden. All rights reserved. Used by permission.
From Flora of Indiana (1940) by Charles C. Deam
This species has been found in only a few of our northern counties in tamarack bogs. Van Gorder found it in a birch marsh in Noble County and Hill reported it from La Porte County. I have had this species in cultivation in the open in garden soil for about 10 years and it thrives.

......

Indiana Coefficient of Conservatism: C = 10

Wetland Indicator Status: OBL

Geum rivale image
Geum rivale image
Geum rivale image
Paul Rothrock  
Geum rivale image
Paul Rothrock  
Geum rivale image
Geum rivale image
Geum rivale image
Paul Rothrock  
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image
Geum rivale image