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Montana Field Guide

Montana Field Guides

American Elm - Ulmus americana

Status Under Review

Global Rank: G5
State Rank: SU

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 9

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General Description
Trees to 15 m with gray to brown, fissured bark. Twigs pubescent with acute buds. Leaf blades elliptic with an asymmetric base, 7–12 cm long, scabrous above with twice serrate margins. Flowers on drooping pedicels 1–2 cm long; calyx with 7 to 9 lobes; anthers red. Samaras ovate, yellowish, ca. 1 cm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Unknown/Undetermined
 


Range Comments
Easternmost tier of counties in MT; southern Canada east from MB to NB and NS; throughout throughout eastern US east of the Longitude 100 W (Sherman-Broyles et al. 1997 in Fl. N. Amer. Vol. 3).

Summary of Observations Submitted for Montana
Number of Observations: 1

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density

Recency

 

(Observations spanning multiple months or years are excluded from time charts)



Habitat
In MT in woodlands in ravines, along rivers and streams; plains to eastern deciduous forests (Sherman-Broyles et al. 1997 in Fl. N. Amer. Vol. 3).

References
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Citation for data on this website:
American Elm — Ulmus americana.  Montana Field Guide.  .  Retrieved on , from