''Holodiscus discolor'', commonly known as ocean spray or oceanspray, creambush, or ironwood, is a shrub of western

North America North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Car ...

Description

''Holodiscus discolor'' is a fast-growing

deciduous In the fields of horticulture and Botany, the term ''deciduous'' () means "falling off at maturity" and "tending to fall off", in reference to trees and shrubs that seasonally shed leaves, usually in the autumn; to the shedding of petals, aft ...

shrub A shrub (often also called a bush) is a small-to-medium-sized perennial woody plant. Unlike herbaceous plants, shrubs have persistent woody stems above the ground. Shrubs can be either deciduous or evergreen. They are distinguished from trees ...

usually from to in height, and up to tall. Its alternate

leaves A leaf (plural, : leaves) is any of the principal appendages of a vascular plant plant stem, stem, usually borne laterally aboveground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", wh ...

are small, long and broad, lobed, juicy green when new. The young branches have longitudinal ridges. Cascading clusters of white

flower A flower, sometimes known as a bloom or blossom, is the reproductive structure found in flowering plants (plants of the division Angiospermae). The biological function of a flower is to facilitate reproduction, usually by providing a mechani ...

s drooping from the branches give the plant its two common names. The flowers have a faint sweet, sugary scent. The bloom period is May to July. It bears a small, hairy fruit containing one seed which is light enough to be dispersed by wind.

Distribution and habitat

The plant is common in the

Pacific Northwest The Pacific Northwest (sometimes Cascadia, or simply abbreviated as PNW) is a geographic region in western North America bounded by its coastal waters of the Pacific Ocean to the west and, loosely, by the Rocky Mountains to the east. Though ...

, and throughout

California California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori ...

in diverse habitats including

California mixed evergreen forest : California mixed evergreen forest is a plant community found in the mountain ranges of California and southwestern Oregon. The Mixed evergreen forest plant community is native to the Northern and Southern California Coast Ranges and Sierra Nev ...

California oak woodland California oak woodland is a plant community found throughout the California chaparral and woodlands ecoregion of California in the United States and northwestern Baja California in Mexico. Oak woodland is widespread at lower elevations in coasta ...

chaparral Chaparral ( ) is a shrubland plant community and geographical feature found primarily in the U.S. state of California, in southern Oregon, and in the northern portion of the Baja California Peninsula in Mexico. It is shaped by a Mediterranean c ...

, Coast redwood forest,

Douglas-fir The Douglas fir (''Pseudotsuga menziesii'') is an evergreen conifer species in the pine family, Pinaceae. It is native to western North America and is also known as Douglas-fir, Douglas spruce, Oregon pine, and Columbian pine. There are three va ...

forest,

Yellow pine forest Ponderosa pine forest is a plant association and plant community dominated by ponderosa pine and found in western North America. It is found from the Rocky Mountains to the Pacific Coast Ranges in the Western United States and Western Canada. In ...

Red fir ''Abies magnifica'', the red fir or silvertip fir, is a western North American fir, native to the mountains of southwest Oregon and California in the United States. It is a high-elevation tree, typically occurring at elevation, though only rare ...

forest, and

Lodgepole pine ''Pinus contorta'', with the common names lodgepole pine and shore pine, and also known as twisted pine, and contorta pine, is a common tree in western North America. It is common near the ocean shore and in dry montane forests to the subalpine, ...

forest. It is native to regions of California including the High

Sierra Nevada The Sierra Nevada () is a mountain range in the Western United States, between the Central Valley of California and the Great Basin. The vast majority of the range lies in the state of California, although the Carson Range spur lies primarily ...

, Northern and Southern

California Coast Ranges The Coast Ranges of California span from Del Norte or Humboldt County, California, south to Santa Barbara County. The other three coastal California mountain ranges are the Transverse Ranges, Peninsular Ranges and the Klamath Mountains. P ...

Klamath Mountains The Klamath Mountains are a rugged and lightly populated mountain range in northwestern California and southwestern Oregon in the western United States. As a mountain system within both the greater Pacific Coast Ranges and the California Coast R ...

Santa Cruz Mountains The Santa Cruz Mountains, part of the Pacific Coast Ranges, are a mountain range in central and Northern California, United States. They form a ridge down the San Francisco Peninsula, south of San Francisco. They separate the Pacific Ocean from ...

, Western

Transverse Ranges The Transverse Ranges are a group of mountain ranges of southern California, in the Pacific Coast Ranges physiographic region in North America. The Transverse Ranges begin at the southern end of the California Coast Ranges and lie within Santa B ...

, and the

San Gabriel Mountains The San Gabriel Mountains ( es, Sierra de San Gabriel) are a mountain range located in northern Los Angeles County, California, Los Angeles County and western San Bernardino County, California, United States. The mountain range is part of the Tr ...

. It is found in both openings and the common

understory In forestry and ecology, understory (American English), or understorey (Commonwealth English), also known as underbrush or undergrowth, includes plant life growing beneath the forest canopy without penetrating it to any great extent, but abov ...

shrub in a variety of forest overstories from in elevation. In open mountain habitat in the Sierra Nevadas it can be found as high as . It is found in a variety of habitats, from moist coastal forests to drier, cooler mountains of inland California. The plant is found in areas prone to

wildfire A wildfire, forest fire, bushfire, wildland fire or rural fire is an unplanned, uncontrolled and unpredictable fire in an area of Combustibility and flammability, combustible vegetation. Depending on the type of vegetation present, a wildfire ...

, and it is often the first green shoot to spring up in an area recovering from a burn. It is commonly found in

communities, a

fire ecology Fire ecology is a scientific discipline concerned with natural processes involving fire in an ecosystem and the ecological effects, the interactions between fire and the abiotic and biotic components of an ecosystem, and the role as an ecosystem p ...

ecosystem which evolved with burning periodically. It also may grow in areas cleared by

logging Logging is the process of cutting, processing, and moving trees to a location for transport. It may include skidding, on-site processing, and loading of trees or logs onto trucks or skeleton cars. Logging is the beginning of a supply chain ...

. In the

California black oak ''Quercus kelloggii'', the California black oak, also known as Kellogg oak, is an oak in the red oak section (genus ''Quercus'', section ''Lobatae'', series ''Agrifoliae''), native to western North America. Although genetically separated from the ...

woodland plant community, common understory associate species include ''

Toxicodendron diversilobum ''Toxicodendron diversilobum'' (syn. ''Rhus diversiloba''), commonly named Pacific poison oak or western poison oak, is a woody vine or shrub in the sumac family, Anacardiaceae. It is widely distributed in western North America, inhabiting coni ...

'' (Western poison-oak), ''

Heteromeles arbutifolia ''Heteromeles arbutifolia'' (; more commonly by Californian botanists), commonly known as toyon, is a common perennial shrub native to extreme southwest Oregon, California, and the Baja California Peninsula. It is the sole species in the genus ...

'' (toyon), and ''

Dryopteris arguta ''Dryopteris arguta'', with the common name coastal woodfern, is a species of wood fern. It is native to the west coast and western interior mountain ranges of North America, from British Columbia, throughout California, and into Arizona. It gr ...

'' (coastal wood fern).

Ecology

It is of special value as a pollinator plant for native bees and butterflies. It is also a larval host to

Lorquin's admiral Lorquin's admiral (''Limenitis lorquini'') is a butterfly in the Nymphalinae subfamily. The butterfly is named after Pierre Joseph Michel Lorquin, a French naturalist who came to California from France during the Gold Rush, and made important dis ...

, pale tiger swallowtail, and

spring azure ''Celastrina ladon'', the spring azure or echo blue, is a butterfly of the family Lycaenidae. It is found in North America from Alaska and Canada south of the tundra, through most of the United States except the Texas coast, southern plain and ...

caterpillars.

Uses

Historically, the plant has been used by Indigenous peoples for many purposes. Raw and cooked seeds were eaten, and leaves were mixed with those of other plants and boiled with small game animals. Many tribes used the wood and bark for making tools and furniture. Noted for the strength of its wood, it was often used for making digging sticks, spears, arrows, bows, harpoons and nails. The wood, like with many other plants, was often hardened with fire and was then polished using

horsetail ''Equisetum'' (; horsetail, snake grass, puzzlegrass) is the only living genus in Equisetaceae, a family of ferns, which reproduce by spores rather than seeds. ''Equisetum'' is a "living fossil", the only living genus of the entire subclass Eq ...

. Comox natives use oceanspray when flowering as an indicator of the best time to dig for butter clams."The effects of climate change on wild plant life cycles"
; Susan Mazer, PhD, Liz Matthews, PhD, National Park Service.

Medicinal

The

Lummi The Lummi ( ; Lummi: ''Xwlemi'' ; also known as Lhaq'temish (), or ''People of the Sea''), governed by the Lummi Nation, are a Native American tribe of the Coast Salish ethnolinguistic group. They are based in the coastal area of the Pacific No ...

used the flowers as an

antidiarrheal An anti-diarrhoeal drug (or anti-diarrheal drug in American English) is any medication which provides symptomatic relief for diarrhoea. Types * Electrolyte solutions, while not true antidiarrhoeals, are used to replace lost fluids and salts in ac ...

and the leaves as a

poultice A poultice, also called a cataplasm, is a soft moist mass, often heated and medicated, that is spread on cloth and placed over the skin to treat an aching, inflamed, or painful part of the body. It can be used on wounds, such as cuts. 'Poultice' ...

. Several Native American tribes, such as the Stl'atl'imx, would steep the berries in boiling water to use as a treatment for diarrhea, smallpox, chickenpox and as a blood tonic.

References

External links

*
Calflora Database: ''Holodiscus discolor'' (Cream bush, Oceanspray) Jepson Manual eFlora (TJM2) treatment of ''Holodiscus discolor''USDA Plants Profile for ''Holodiscus discolor'' (oceanspray)UC Photos gallery of ''Holodiscus discolor'' (oceanspray)
{{Taxonbar, from=Q3139473 discolor Flora of British Columbia Flora of California Flora of Idaho Flora of Oregon Flora of Washington (state) Flora of the Cascade Range Flora of the Klamath Mountains Flora of the Sierra Nevada (United States) Natural history of the California chaparral and woodlands Natural history of the California Coast Ranges Natural history of the San Francisco Bay Area Natural history of the Transverse Ranges Taxa named by Frederick Traugott Pursh Plants used in traditional Native American medicine Garden plants of North America Butterfly food plants