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;  scale-like, < 1 mm; fruit ± broadly fusiform-spheric, 2-colored (1 color below, 1 above), not white, not pink, not ± red, explosive,  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  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 persistentinflorescence 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 ; 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 ; 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 the whole project: Jepson Flora Project (eds.) . Jepson eFlora, [accessed on ]

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