Arceuthobium
dwarf mistletoe
6 species
2 subspecies and varieties
2 subspecies and varieties
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Arceuthobium abietinum – white fir dwarf mistletoe
Distribution: Occurring on both sides of the Cascades crest in southern Washington; southern Washington to California, east to Utah, Nevada, and Arizona.
Habitat: Primarily on Abies grandis and A. concolor in our area, rarely on adj A. amabilis and Pinus spp. in Oregon Cascades.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in southern Washington; southern Washington to California, east to Utah, Nevada, and Arizona.
Habitat: Primarily on Abies grandis and A. concolor in our area, rarely on adj A. amabilis and Pinus spp. in Oregon Cascades.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Arceuthobium americanum – lodgepole pine dwarf mistletoe
Distribution: Occurring chiefly east of the Cascades rest in Washington; southern British Columbia to California, east to the Rocky Mountains.
Habitat: Parasitic on Pinus, usually on Pinus contorta.
Origin: Native
Flowers: April- June
Growth Duration: Perennial
Distribution: Occurring chiefly east of the Cascades rest in Washington; southern British Columbia to California, east to the Rocky Mountains.
Habitat: Parasitic on Pinus, usually on Pinus contorta.
Origin: Native
Flowers: April- June
Growth Duration: Perennial
Arceuthobium campylopodum – western dwarf mistletoe
Distribution: Occurring chiefly east of the Cascades crest in Washington; eastern Washington to California, east to northern and central Idaho.
Habitat: Parasitic primarily on Pinus ponderosa, occasionally on adjacent P. contorta vars. latifolia and murrayana and rarely on P. lambertiana, not known on Tsuga or Larix;
Origin: Native
Flowers: June-September
Growth Duration: Perennial
Distribution: Occurring chiefly east of the Cascades crest in Washington; eastern Washington to California, east to northern and central Idaho.
Habitat: Parasitic primarily on Pinus ponderosa, occasionally on adjacent P. contorta vars. latifolia and murrayana and rarely on P. lambertiana, not known on Tsuga or Larix;
Origin: Native
Flowers: June-September
Growth Duration: Perennial
Arceuthobium douglasii – Douglas-fir dwarf mistletoe
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Parasitic primarily on Pseudotsuga menziesii, rarely on adjacent Abies and Picea.
Origin: Native
Flowers: May-June
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Parasitic primarily on Pseudotsuga menziesii, rarely on adjacent Abies and Picea.
Origin: Native
Flowers: May-June
Growth Duration: Perennial
Arceuthobium laricis – larch dwarf mistletoe
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to Oregon, east to Idaho and Montana.
Habitat: Primarily on Larix occidentalis and Tsuga mertensiana, occasionally on adjacent Pinus contorta, P. ponderosa, and Abies lasiocarpa, not on Tsuga heterophylla.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to Oregon, east to Idaho and Montana.
Habitat: Primarily on Larix occidentalis and Tsuga mertensiana, occasionally on adjacent Pinus contorta, P. ponderosa, and Abies lasiocarpa, not on Tsuga heterophylla.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Arceuthobium tsugense – hemlock dwarf mistletoe
Distribution: Occurring west of the Cascades crest in Washington; southeastern Alaska to California.
Habitat: Parasitic primarily on Tsuga heterophylla, and also Abies amabilis, A. procera, and occasionally adjacent A. grandis.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest in Washington; southeastern Alaska to California.
Habitat: Parasitic primarily on Tsuga heterophylla, and also Abies amabilis, A. procera, and occasionally adjacent A. grandis.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
• ssp. contortae – hemlock dwarf mistletoe
• ssp. tsugense – hemlock dwarf mistletoe
