Betula pumila L.  
Family: Betulaceae
bog birch, dwarf birch, swamp birch
[Betula borealis Spach, Betula glandulifera (Regel) B.T.Butler, Betula glandulosa var. glandulifera Michx., Betula glandulosa var. hallii Michx., Betula hallii T.J.Howell, Betula nana var. glandulifera L., Betula pubescens subsp. borealis Ehrh., Betula pumila var. glabra L., Betula pumila var. glandulifera L., Betula pumila var. pumila L., Betula pumila var. renifolia L.]
Betula pumila image
Hugh H. Iltis  
Etymology: Betula: ancient Latin name
Plants: perennial, erect, coarse, irregular shrub 4'-13' tall; smooth bark dark reddish brown; pale, inconspicuous lenticels; often forming large colonies; twigs not tasting or smelling like wintergreen
Leaves: stiff, elliptic to obovate to widely ovate; broadly-round above and at the base; edges coarsely toothed
Flowers: male catkin 1/3"-3/4" long on 1/4"-1/3" stalks; blooms in late spring
Fruits: cylindrical, erect fruit clusters; samara wings slightly narrower than the body, widest near the middle
Habitat: moist to wet; bogs, calcareous fens, wooded swamps, muskegs, lakeshores
Conservation Status: Native
Betula pumila image
Kenneth J. Sytsma  
Betula pumila image
Kenneth J. Sytsma  
Betula pumila image
Derek Anderson  
Betula pumila image
Botanical Illustration  
More Images    View Genus       View Specimen Records       Close window