Paper Birch - Betula papyrifera
MNPS Threat Rank
Small, short-lived tree to 15 m tall with gray or brown bark when young but white and peeling when older. Twigs sparsely glandular and short-hairy. Leaf blades 4–7 cm long with sharp-dentate margins and tufts of light brown hair in axils of veins beneath. Female catkins 25–35 mm long. Fruit with wings as wide or wider than the nutlet (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX)
Northwestern counties of MT plus Phillips, Powder River and Carter counties; AK to NL south to WA, CO, MN, PA and VA (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX; Furlow 1997 in Fl. N. Amer. Vol. 3).
Observations in Montana Natural Heritage Program Database
Number of Observations:
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Map Help and Descriptions
(Observations spanning multiple months or years are excluded from time charts)
Moist open forest, rocky lower slopes, along streams and lakes; valleys, montane, rarely plains (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX)
- Additional ReferencesLegend: View Online Publication
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- Fogelsong, M.L. 1974. Effects of fluorides on Peromyscus maniculatus in Glacier National Park. M.Sc. Thesis. Bozeman, Montana: Montana State University. 52 p.
- Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
- Little, E.L., Jr. 1979. Checklist of United States trees (native and naturalized). Agriculture Handbook No. 541. U.S. Forest Service, Washington, D.C. 375 pp.