Holodiscus discolor (Pursh) Maxim.
oceanspray (creambush)
Rosaceae (Rose family)

Introduction to Vascular Plants

Photograph

© Gordon Neish     (Photo ID #19244)


Map

E-Flora BC Static Map

Distribution of Holodiscus discolor
Click here to view the full interactive map and legend

Species Information

General:
Medium to tall shrub, 1-4 m tall; stems slender, erect to ascending, usually arching, hairy, the young stems ridged, older ones with reddish-grey, peeling bark.
Leaves:
Alternate, deciduous, dull green, egg-shaped to broadly triangular, 3-6 (10) cm long, coarsely toothed or shallowly pinnately lobed, often with minute, abruptly pointy-tipped, secondary teeth, squared-off to wedge-shaped at the base, on stalks 10-15 mm long, the upper surface green and coarse-hairy to smooth, the lower surface paler, strongly veined and soft-hairy.
Flowers:
Inflorescences diffuse, terminal, pyramidal, somewhat drooping clusters 10-17 cm long, of numerous small (3-5 mm across), short-stalked flowers; corollas white to cream, the petals 5, oval, 1.5-2 mm long; calyces deeply 5-lobed, the lobes about 1.5 mm long, short-hairy on the outer surface; ovaries superior, hairy; stamens about 20.
Fruits:
Achenes, 5, tiny (about 2 mm long), light brown, long-stiff-hairy; fruit clusters turning brown and remaining on the plants over the winter.

SourceThe Illustrated Flora of British Columbia

Illustration

If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.

USDA Species Characteristics

Flower Colour:
White
Blooming Period:
Late Summer
Fruit/Seed characteristics:
Colour: Brown
Present from Summer to Fall
Source:  The USDA

Ecology

Ecological Framework for Holodiscus discolor

The table below shows the species-specific information calculated from
original data (BEC database) provided by the BC Ministry of Forests and Range.
(Updated August, 2013)

Site Information
Value / Class

Avg

Min

Max

Elevation (metres)
607 1 1540
Slope Gradient (%)
35 0 150

Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]

203 0 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
2 0 7
Modal Nutrient Regime
Class
C
# of field plots
 species was recorded in:
707
Modal BEC Zone Class
ICH

All BEC Zones (# of stations/zone) species was recorded in

BG(1), CDF(175), CWH(43), ICH(267), IDF(192), MS(9), PP(16)

Habitat and Range

Dry to mesic bluffs, rocky slopes, clearings, thickets, forest edges and open forests in the lowland to montane zones; common in S BC, disjunct in Bella Coola valley; S to ID, MT and CA.

SourceThe Illustrated Flora of British Columbia

Synonyms

Synonyms and Alternate Names:
Holodiscus boursieri (Carr.) Rehd.
Holodiscus discolor subsp. franciscanus (Rydb.) Taylor & MacBryde
Holodiscus discolor var. ariaefolius (Sm.) Asch. & Graebn.
Holodiscus discolor var. delnortensis Ley
Holodiscus discolor var. franciscanus (Rydb.) Jepson
Holodiscus discolor var. glabrescens (Greenm.) Jepson
Holodiscus dumosus subsp. saxicola (A. Heller) Abrams
Holodiscus dumosus var. australis (A. Heller) Ley
Holodiscus dumosus var. glabrescens (Greenm.) C.L. Hichc.
Holodiscus glabrescens (Greenm.) A. Heller
Holodiscus microphyllus Rydb.
Holodiscus microphyllus var. glabrescens (Greenm.) Ley
Holodiscus microphyllus var. microphyllus Rydb. [superfluous autonym]
Holodiscus microphyllus var. sericeus Ley
Holodiscus microphyllus var. typicus Ley
Sericotheca discolor (Pursh) Rydb.
Spiraea discolor Pursh