Western Poison Ivy
Toxicodendron rydbergii
(Rhus radicans)
Spring foliage is shiny green. Spring 2009.
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VINE: Rambling and often vine like. Occasionally short stems may be
partially ascending without supporting surfaces.
LEAVES: Shiny, compound leaves are three parted. Change to
characteristic sumac red in autumn.
RANGE: Fairly common in Sycamore woodlands particularly on shady
embankments.
FRUIT: White berries.
FLOWERS: Inconspicuous whitish-yellow flowers. The small clusters are
set close to the stem and appear in spring.
UNARMED. Leaves and stems produce resin that causes dermatitis in
susceptible persons.
Anacardiaceae -- Sumac Family
More Information:
- Southwest Colorado Wildflowers
- USDA Plant Profile
- ITIS Taxonomic Report
- Google Images
- Google Scholar Literature Search