Plantae > Tracheophyta > Magnoliopsida > Ranunculales > Berberidaceae > Mahonia > Mahonia aquifolium

Mahonia aquifolium (Oregon-grape)

Synonyms:

Wikipedia Abstract

Berberis piperiana is a shrub native to the mountains of northern California and southwestern Oregon. It is found in open and wooded slopes at elevations of 900–1,700 m (3,000–5,600 ft). Berberis piperiana can attain a height of up to 80 cm (31 in). Leaves are evergreen, pinnately compound with 5-9 leaflets. Berries are dark blue and waxy. The species is related to the more common Oregon-grape, B. aquifolium, but distinguished by its shorter stature and broader leaflets. The compound leaves place this species in the group sometimes segregated as the genus Mahonia.
View Wikipedia Record: Mahonia aquifolium

Infraspecies

Mahonia aquifolia var. aquifolia
Mahonia aquifolia var. lyallii

Attributes

Allergen Potential [1]  Low
Screening - Summer [2]  Moderate
Screening - Winter [2]  Moderate
Bloom Period [2]  Late Spring
Drought Tolerance [2]  High
Edible [3]  May be edible. See the Plants For A Future link below for details.
Flower Type [3]  Hermaphrodite
Frost Free Days [2]  5 months 20 days
Fruit/Seed Abundance [2]  Low
Fruit/Seed Begin [2]  Summer
Fruit/Seed End [2]  Summer
Growth Form [2]  Rhizomatous
Growth Period [2]  Spring, Summer
Growth Rate [2]  Moderate
Leaf Type [3]  Evergreen
Lifespan [4]  Perennial
Pollinators [3]  Insects, Lepidoptera, Bats
Propagation [2]  Bare Root, Container, Cutting, Seed
Root Depth [2]  20 inches (51 cm)
Scent [3]  The flowers are delicately scented;
Seed Spread Rate [2]  Slow
Seed Vigor [2]  Low
Seeds Per [2]  33000 / lb (72752 / kg)
Shape/Orientation [2]  Semi-Erect
Structure [3]  Shrub
Usage [3]  A yellow dye is obtained from the inner bark of the stem and roots; It is green according to another report; Dark green, violet and dark blue-purple dyes are obtained from the fruit; A green dye is obtained from the leaves; This species can be grown as a low hedge and does not need trimming. Because of its suckering habit, it also makes a good dense ground cover plant though it can be slow to become established;
Vegetative Spread Rate [2]  None
Flower Color [2]  Yellow
Foliage Color [2]  Green
Fruit Color [2]  Blue
Fall Conspicuous [2]  Yes
Flower Conspicuous [2]  Yes
Fruit Conspicuous [2]  Yes
Height [3]  6.56 feet (2 m)
Width [3]  4.92 feet (1.5 m)
Hardiness Zone Minimum [2]  USDA Zone: 2 Low Temperature: -50 F° (-45.6 C°) → -40 F° (-40 C°)
Light Preference [5]  Mixed Sun/Shade
Soil Acidity [5]  Moderate Acid
Soil Fertility [5]  Intermediate
Soil Moisture [5]  Mostly Dry
Water Use [2]  Low
View Plants For A Future Record : Mahonia aquifolium

Protected Areas

Emblem of

Oregon

Predators

Consumers

Parasitized by 
Cumminsiella mirabilissima[10]
Erysiphe berberidis[10]
Puccinia graminis[10]

External References

NatureServe Explorer

NatureServe Explorer

Citations

Attributes / relations provided by
♦ 1Derived from Allergy-Free Gardening OPALS™, Thomas Leo Ogren (2000)
♦ 2USDA Plants Database, U. S. Department of Agriculture
♦ 3Plants For A Future licensed under a Creative Commons Attribution 4.0 License
♦ 4PLANTATT - Attributes of British and Irish Plants: Status, Size, Life History, Geography and Habitats, M. O. Hill, C. D. Preston & D. B. Roy, Biological Records Centre, NERC Centre for Ecology and Hydrology (2004)
♦ 5ECOFACT 2a Technical Annex - Ellenberg’s indicator values for British Plants, M O Hill, J O Mountford, D B Roy & R G H Bunce (1999)
♦ 6Aplodontia rufa, Leslie N. Carraway and B. J. Verts, MAMMALIAN SPECIES No. 431, pp. 1-10 (1993)
♦ 7An Ecological Survey of Endemic MOUNTAIN BEAVERS (Aplodontia rufa) in California, 1979-83, Dale T. Steele', State of California, THE RESOURCES AGENCY, Department of Fish and Game
♦ 8Ben-Dov, Y., Miller, D.R. & Gibson, G.A.P. ScaleNet 4 November 2009
♦ 9Biological Records Centre Database of Insects and their Food Plants
♦ 10Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.
Abstract provided by DBpedia licensed under a Creative Commons License
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0