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Montana Field Guide

Montana Field Guides

Western Dwarf-mistletoe - Arceuthobium campylopodum

Native Species

Global Rank: G5
State Rank: SNR

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

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General Description
Stems orange-yellow to olive-green or brownish, 2-15(-20) cm long, much-branched, usuall tufted (scattered), the segments 1-2(-4) mm thick, mostly 5-10 times as long; accessory branches (if any) in one plane, the branches at each node fanline; staminate flowers usually paired at each node, sessile or subsessile, 2.5-3 mm broad, yellow or orange to green, the perianth parts 3 or 4 (sometimes varying even in separate flowers at the same node); pistillate flowers 1 or 2 per node, sessile or with slender pedicels up to 1 mm long; fruit 3-5 mm long (Hitchcock, 1964, Vasc. Pl. Pac. Northwest, Part 2).

Range Comments
BC south to CA, barely into NV, east into central ID (Kartesz in prep. 2012); possibly in Ravalli County (Lackschewtiz 1991).

Observations in Montana Natural Heritage Program Database
Number of Observations: 4

(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
Confierous forests. According to Hitchcock (1964), greenish-brown stems likely would be associated with Limber pine (Pinus flexilis) or Whitebark pine (P. albicaulis). Greenish stems likely would be associated with Western white pine (P. monticola). Orange-yellow to brownish stems would likely be associated with Ponderosa pine (P. ponderosa) or Lodgepole pine (P. contorta).

References
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Citation for data on this website:
Western Dwarf-mistletoe — Arceuthobium campylopodum.  Montana Field Guide.  .  Retrieved on , from