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Montana Field Guide

Montana Field Guides

Box-elder - Acer negundo


Global Rank: G5
State Rank: S5

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 2

External Links






 
General Description
Small dioecious trees to 15 m. Twigs glabrate to pilose. Leaves 3-
or -(rarely)5-foliolate; leaflets pubescent on veins beneath, lanceolate to ovate, coarsely few-toothed, 3–8 cm long; lateral pair asymmetric. Inflorescence: female flowers in pendent racemes from axillary buds; male flowers fascicled. Flowers unisexual, green; sepals ca. 1 mm long; petals absent. Samara 2–3 cm long, the seed ca. 1 cm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


Range Comments
Throughout temperate N. America (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 24

(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
Riparian forest, woodlands, roadsides, fields; plains, valleys (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Box-elder — Acer negundo.  Montana Field Guide.  .  Retrieved on , from