E-Flora BC: Electronic Atlas of the Flora of British Columbia

Rosa nutkana C. Presl
Nootka rose
Rosaceae (Rose Family)

Introduction to Vascular Plants

© Brian Klinkenberg  Email the photographer   (Photo ID #20213)


Distribution of Rosa nutkana
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Species Information

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PDROS1J0S1
PDROS1J0S3


Illustration SourceThe Illustrated Flora of BC

General:
Medium to tall shrub 0.5-3 m tall, spreading by rhizomes and often thicket-forming; stems stout to spindly, erect to arching, with a pair of large prickles (thorns) at each node, usually lacking internodal prickles; mature stems blackish.
Leaves:
Alternate, deciduous, odd-pinnately compound, the leaf-stalk and axis glandular-hairy or short-hairy; leaflets 5 or 7 (9), elliptic to egg-shaped, 1-7 cm long, coarsely single- or double-toothed, somewhat glandular-short-hairy beneath; stipules usually glandular-blunt-toothed.
Flowers:
Inflorescence of usually single, sometimes 2 or 3, stalked flowers on lateral branchlets; corollas pink, saucer-shaped, large (4-8 cm across), the petals 5, (2) 2.5-4 cm long; calyces smooth or glandular-bristly, 5-lobed, the lobes lanceolate, 1.5-4 cm long, long-tapering and narrowing then flaring below the tip, persistent; ovaries superior but enclosed in the urn-shaped floral tube (hypanthium); stamens numerous.
Fruits:
Achenes, numerous, stiffly long-hairy on one side, enclosed by the fleshy hypanthium, which ripens into a purplish-red, globe- to pear-shaped hip 1-2 cm long.
Notes:
Two varieties occur in BC:

1. Leaflets doubly saw-toothed, the teeth gland-tipped; infrastipular prickles becoming much enlarged and flattened toward base; plants mostly from west of Coast-Cascade Mountains................. var. nutkana

1. Leaflets singly saw-toothed, the teeth not gland-tiped; prickles rarely enlarged and flattened; plants mostly from east of Coast-Cascade Mountains..................var. hispida Fern.

SourceThe Illustrated Flora of British Columbia

USDA Flower Colour:
Red
USDA Blooming Period:
Late Spring
USDA Fruit/Seed characteristics:
Colour: Red
Present from Spring to Fall
Source:  The USDA

Ecological Indicator Information

Climate

The climate type for this species, as reported in the:  "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Habitat / Range

Mesic to moist thickets, forest edges, river terraces, shorelines, streambanks, clearings and roadsides in the lowland and montane zones; common throughout BC south of 55oN except in the Chilcotin area, infrequent northward, absent in NE BC; N to AK and S to CA, CO and UT.

SourceThe Illustrated Flora of BC

Additional Notes

Aboriginal people in the Pacific Northwest traditionally used this species as a food, medicine, and source of cultural material. The methanolic extract of the fruits of R. nutkana has been found to have inhibitory activity against methicillin-resistant Staphylococcus aureus (MRSA).

Reference:

Jovel, Eduardo M., Xi Ling Zhou, Dong Sheng Ming, Tanya R. Wahbe, and G.H. Neil Towers. 2007. Bioactivity-guided isolation of the active compounds from Rosa nutkana and quantitative analysis of ascorbic acid by HPLC Canadian Journal of Physiology and Pharmacology 85(9): 865–871.

Synonyms and Alternative Names

Rosa muriculata Greene

Taxonomic and Nomenclatural Links

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Related Databases

General References