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Lewis and Clark
SHOWING RECORD: 19 of 47   Hollyleaf Oregon-Grape
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image: Hollyleaf Oregon-Grape
Illustration by Mary E. Eaton
Hollyleaf Oregon-Grape
(Tall Oregon-Grape, Hollyleaf Barberry)

Mahonia aquifolium (Berberis aquifolium)



First Noted by Expedition
April 11, 1806, at Celilo Falls, Oregon.
 

Description
Pinnately compound leaves with leathery, hollylike leaflets on stems ending in dense, branched clusters of small yellow flowers about 0.5 in (1.3 cm) wide. Height: to 7 ft (2 m).
 

Habitat
Semi-open lowland forests.
 

Range
Western Canada south to California and Idaho; also in Great Lakes region, south to Kentucky and New Jersey.
 

Note
This stout shrub is the state flower of Oregon. Native Americans made a yellow dye from the bark and wood of this shrubby species. Also known as ground potatoes, these plants were a vital food source for Plains tribes. The starchy, tuberous root was boiled and mashed, or dried and pounded into meal.

Species information from enature.com
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