Arceuthobium campylopodum subsp. occidentale

(Engelmann) Nickrent

Phytoneuron 2012-51: 10. 2012

Common names: Digger pine dwarf mistletoe
Basionyms: Arceuthobium occidentale Engelmann in J. T. Rothrock Rep. U.S. Geogr. Surv., Wheeler, 254, 375. 1879
Treatment appears in FNA Volume 12. Treatment on page 433. Mentioned on page 429, 430.
Plants usually forming localized infections only. Stems yellow or orange, 8(–17) cm; third internode 7–12.7(–18) × 1.5–1.8(–3.5) mm, dominant shoot 1.5–5 mm diam. at base. Staminate flowers 3 mm diam.; petals 3–4. Fruits 4.5 × 3 mm.

Phenology: Flowering Sep–Nov(–Dec); fruiting (Sep–)Oct–Jan(–Feb).
Habitat: Coniferous and mixed forests, especially with digger pine.
Elevation: 30–1200 m.


Meiosis occurs in August, with fruits maturing 13 months after pollination.

Pinus sabiniana is the principal host of subsp. occidentale; secondary hosts include Pinus attenuata, P. coulteri, P. jeffreyi, and P. ponderosa, as well as some exotic species of pines. Subspecies occidentale occurs in the foothills surrounding the Central Valley and in the Coast Ranges.

Selected References


Lower Taxa


AuthorDaniel L. Nickrent +
Authority(Engelmann) Nickrent +
BasionymsArceuthobium occidentale +
Common nameDigger pine dwarf mistletoe +
DistributionCalif. +
Elevation30–1200 m. +
HabitatConiferous and mixed forests, especially with digger pine. +
Illustration copyrightFlora of North America Association +
IllustratorYevonn Wilson-Ramsey +
PhenologyFlowering Sep–Nov(–Dec) + and fruiting (Sep–)Oct–Jan(–Feb). +
Publication titlePhytoneuron +
Publication year2012 +
ReferenceNone +
Source xml grained fna xml/V12/V12 1082.xml +
Special statusEndemic +
SynonymsRazoumofskya campylopoda +
Taxon familyViscaceae +
Taxon nameArceuthobium campylopodum subsp. occidentale +
Taxon parentArceuthobium campylopodum +
Taxon ranksubspecies +
VolumeVolume 12 +