Jepson eFlora: Key page    
    Vascular Plants of California
Key to families | Table of families and genera

Key to Viscaceae

View taxon page for Viscaceae

Jepson Manual glossary definitions can be seen by moving your cursor over words underlined with dots.

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


Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, [accessed on month, day, year]

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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