E-Flora BC: Electronic Atlas of the Flora of British Columbia

Arceuthobium douglasii Engelm.
Douglas' dwarf mistletoe (Douglas fir dwarf mistletoe)
Santalaceae (Christmas Mistletoe family)
(Previously in Viscaceae)

Introduction to Vascular Plants
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Distribution of Arceuthobium douglasii
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Species Information

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General:
Perennial parasitic shrub; stems bluish or bluish-green, smooth, 0.5-3 cm long; segments about 1 mm thick or less; accessory branches, if any, usually in 1 plane, the branches at each node fanlike.
Flowers:
Male flowers about 2 mm wide, greenish to yellow, terminal on short, stalk-like joints, usually 2 per node, the buds egg-shaped, the perianth lobes rounded on the backs; female flowers 2 per node, short-stalked.
Fruits:
Berries, egg-shaped, about 3 mm long, greenish to bluish, usually 1-seeded, mucilaginous, maturing the 2nd summer.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Parasitic on Pseudotsuga in the montane zone; infrequent in SC and SE BC; S to TX, NM, AZ and CA.

Source: The Illustrated Flora of British Columbia

Climate

The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Taxonomic and Nomenclatural Links

Additional Photo Sources

Species References

Hawksworth, Frank G., Rebecca G. Nisley, Brian W. Geils, and Delbert Wiens. 1998. Dwarf Mistletoes: Biology, Pathology and Systematics. United States Department of Agriculture, Forest Service.

General References