Flora of North America species comparison

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Phoradendron juniperinum

juniper mistletoe, juniper or incense cedar mistletoe, mistletoe
Habit Subshrubs, erect, 1–2(–2.5) dm, dioecious.
Stems

green to olive green, glabrous;

internodes terete, 5–20 × 1.5–2.5 mm.
Leaves

green to olive green, scalelike;

blade triangular, 2 mm, apex acute;

basal phyllotaxy transverse.
Flowers

petals 3–4, 0.5–1 mm.
Berries

white or pinkish, globose to ellipsoid-globose, 4–5 × 3 mm, glabrous.
Staminate

inflorescences 3–5 mm;

peduncle with 1 internode, 3 mm;

fertile internode usually 1, 6-flowered, seriation unknown, flowers 3 (2 proximal, 1 distal) per bract.
Pistillate

inflorescences 3–5 mm;

peduncle with 1 internode, 2 mm;

fertile internode 1, 2-flowered, flowers 1 per bract.
2n

= 28.

Phoradendron juniperinum
Phenology Flowering summer–early fall.
Habitat Forests or woodlands with juniper or incense cedar.
Elevation 800–2900 m. (2600–9500 ft.)
Distribution
from FNA
AZ; CA; CO; ID; NM; NV; OR; TX; UT; Mexico (Baja California, Chihuahua, Coahuila, Sonora)
[WildflowerSearch map]
[BONAP county map]
Discussion

Phoradendron juniperinum is often classified as having two subspecies, subspp. juniperinum and libocedri. Subspecies juniperinum is found throughout the species' range as globose infections on various species of Juniperus. The larger, pendent parasites of Calocedrus from California have been recognized as subsp. libocedri. J. Kuijt (2003) argued that this habit could be a host response because intermediate morphologies are known; the two taxa are not recognized here.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 12, p. 435.
Parent taxa Viscaceae > Phoradendron
Sibling taxa
P. bolleanum, P. californicum, P. capitellatum, P. leucarpum, P. rubrum, P. villosum
Synonyms P. juniperinum subsp. libocedri, P. juniperinum var. libocedri, P. juniperinum var. ligatum, P. libocedri, P. ligatum
Name authority A. Gray: Mem. Amer. Acad. Arts, n. s. 4: 58. (1849)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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