Phoradendron Nutt.
Family: Santalaceae
Notes: Systematic Botany Monographs 66: 423. 2003
Phoradendron image

PLANTS: Aerial shrubs parasitic on dicot or coniferous shrubs and trees, 2-15 dm high, woody, glabrous or hairy, dioecious in AZ (some tropical species monoecious).

SHOOTS: usually some shade of green, but sometimes reddish.

LEAVES: simple, entire, decussate, but reduced to minute scales in 2 species.

INFLORESCENCE: axillary spikes with 1-7 fertile segments.

FLOWERS: sunken along the axis; perianth segments usually 3, persistent in fruit; staminate flower with a sessile minute (less than 2 mm), 2-chambered anther; pistillate flower with a single style and rounded stigma.

FRUIT: 3-6 mm in diameter, sessile, white, pink, or reddish; eaten and dispersed by birds. (Greek: phor = thief + dendron = tree).

NOTES: ca. 200 spp. in the U.S., north temperate, tropical and subtropical distribution in the New World. Trelease, W. 1916. The Genus Phoradendron, Univ. Ill. Press; Wiens, D. 1964. Brittonia 16:11-54.

REFERENCES: Hawksworth, Frank G. 1994. Viscaceae. J. Ariz. - Nev. Acad. Sci. Volume 27(2), 241-245.

Monoecious or dioecious; perianth deeply 3-lobed, subglobose; anthers 3, sessile on the base of the perianth-lobes, opening transversely; ovary ovoid; fr a subglobose to ovoid, sessile berry; small shrubs, parasitic on trees, with well developed (in most spp.), opposite, coriaceous lvs and small fls in short, axillary spikes. 200, New World.

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

©The New York Botanical Garden. All rights reserved. Used by permission.

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Image of Phoradendron bolleanum
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Image of Phoradendron californicum
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Image of Phoradendron capitellatum
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Image of Phoradendron juniperinum
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Image of Phoradendron serotinum
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Image of Phoradendron villosum
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