Jepson eFlora
Key to families | Table of families and genera

Key to Viscaceae

View taxon page for Viscaceae

1. Stem generally < 20 cm, ± angled at least when young, straw-colored, yellow, yellow-green, olive-green, green, brown, purple; leaf scale-like, < 1 mm; fruit ± broadly fusiform-spheric, 2-colored (1 color below, 1 above), not white, not pink, not ± red, explosive, pedicel recurved; pistillate perianth parts 2; anthers ± 1-chambered; on Abies, Pinus, Pseudotsuga, Tsuga, Picea ..... ARCEUTHOBIUM

1' Stem generally > 20 cm, not angled, green, yellow-green, gray-green, less often ± red; leaf blade 5–70 mm, or leaf scale-like, < 1 mm; fruit ± spheric, 1-colored, white, pink, or ± red, not explosive, pedicel ± straight or 0; pistillate perianth parts generally 3–4; anthers 2–several-chambered; on woody angiosperms or Abies, Calocedrus, Juniperus, Hesperocyparis.

2. Perianth parts generally 3, pistillate persistent; inflorescence few- to many-flowered spikes; flowers ± sunken into axis (by proliferation of axis tissue); fruit ± 3–6 mm; leaf blade 5–47 mm, or leaf scale-like, < 1 mm, glabrous or minutely tomentose; anthers 2-chambered; on especially Abies, Acacia, Adenostoma, Alnus, Arctostaphylos, Calocedrus, Cercidium, Fraxinus, Hesperocyparis, Juglans, Juniperus, (Larrea), Olneya, Platanus, Populus, Prosopis, Quercus, Rhus, Robinia, Salix, Umbellularia, reportedly on Pinus monophylla ..... PHORADENDRON

2' Perianth parts generally 4, pistillate generally deciduous; inflorescence few-flowered cymes; flowers not sunken into axis; fruit 6–10 mm; leaf blade generally 50–80 mm, fleshy, glabrous; anthers several-chambered; on especially Acer, Alnus, Betula, Crataegus, Malus, Populus, Robinia, Salix, Ulmus ..... VISCUM


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Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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