Arceuthobium campylopodum subsp. cyanocarpum

(A. Nelson ex Rydberg) Nickrent

Phytoneuron 2012-51: 9. 2012

Common names: Limber pine dwarf mistletoe
Basionyms: Razoumofskya cyanocarpa A. Nelson ex Rydberg Fl. Colorado, 100. 1906
Synonyms: Arceuthobium cyanocarpum (A. Nelson ex Rydberg) J. M. Coulter & A. Nelson
Treatment appears in FNA Volume 12. Treatment on page 431. Mentioned on page 429.
Plants forming witches' brooms. Stems yellow, green, olive green, or brown, 3(–7) cm; third internode 2–5.2(–14) × 1–1.1(–1.5) mm, dominant shoot 1–2 mm diam. at base. Staminate flowers 3 mm diam.; petals 3(–4). Fruits 3.5 × 2.5 mm.

Phenology: Flowering Jul–Sep; fruiting Aug–Sep.
Habitat: Coniferous forests.
Elevation: 1600–3100 m.


V12 309-distribution-map.jpg

Calif., Colo., Idaho, Mont., Nev., Oreg., Utah, Wyo.


Meiosis occurs in July, with fruits maturing 12 months after pollination.

Subspecies cyanocarpum is widely distributed at high elevations in the western United States from the Rocky Mountains to the Sierra Nevada of California. Its most common host is Pinus flexilis; however, P. albicaulis, P. aristata, and P. longaeva are also listed as principal hosts owing to their high incidence of infection. Additional secondary to rare hosts include Picea engelmannii, Pinus balfouriana, P. contorta, P. monticola, P. ponderosa, and Tsuga mertensiana. This mistletoe is a significant pathogen in many locations, sometimes resulting in massive host tree mortality.

Selected References


Lower Taxa


AuthorDaniel L. Nickrent +
Authority(A. Nelson ex Rydberg) Nickrent +
BasionymsRazoumofskya cyanocarpa +
Common nameLimber pine dwarf mistletoe +
DistributionCalif. +, Colo. +, Idaho +, Mont. +, Nev. +, Oreg. +, Utah + and Wyo. +
Elevation1600–3100 m. +
HabitatConiferous forests. +
Illustration copyrightFlora of North America Association +
IllustratorYevonn Wilson-Ramsey +
PhenologyFlowering Jul–Sep + and fruiting Aug–Sep. +
Publication titlePhytoneuron +
Publication year2012 +
ReferenceNone +
Source xml grained fna xml/V12/V12 309.xml +
Special statusEndemic +
SynonymsArceuthobium cyanocarpum +
Taxon familyViscaceae +
Taxon nameArceuthobium campylopodum subsp. cyanocarpum +
Taxon parentArceuthobium campylopodum +
Taxon ranksubspecies +
VolumeVolume 12 +