Key to Arceuthobium
View taxon page for Arceuthobium
(For a list of species in Arceuthobium, use the above link.)
Jepson Manual glossary definitions can be seen by moving your cursor over words underlined with dots.
1. Stem generally << 2 cm, 2° branches
rare; on
Pseudotsuga menziesii, rarely on associated
Abies ..... A. douglasii 1' Stem > 2 cm, 2° branches many; on
Abies,
Pinus,
Tsuga, rarely
Picea breweriana 2. Larger branches
whorled 
Arranged in groups of three or more at nodes or positions along an axis (e.g., three leaves per node).
; on
Pinus contorta subsp.
murrayana, rarely on associated
Pinus ..... A. americanum 2' Larger branches not whorled, in 1 plane; on
Abies,
Pinus (except
Pinus contorta subsp.
murrayana),
Tsuga, rarely
Picea ..... A. campylopodum
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Citation for the whole project: Jepson Flora Project (eds.) . Jepson eFlora, https://ucjeps.berkeley.edu/eflora/ [accessed on ]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on .
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