Dwarf Birch - Betula glandulosa
Betula nana s.l.
MNPS Threat Rank
Shrub to 2 m high with brown to black bark. Twigs short-pubescent, densely glandular. Leaf blades 1–2 cm long, glandular, paler beneath. Female catkins 5–20 mm long. Fruit with wings 1/4–1/2 as wide as nutlet (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX)
Very similar to Betula pumila and often difficult to separate from it. Hybrids between the two are not uncommon. Some authors place this entity within a broad concept of B. nana (e.g., Flora North America).
Northern Canada, Alaska, Siberia, northern Europe, Greenland. Rare in Que, Lab, NS (syn. B. michauxii).
Observations in Montana Natural Heritage Program Database
Number of Observations:
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(Observations spanning multiple months or years are excluded from time charts)