''Vaccinium macrocarpon'', also called large cranberry, American cranberry and bearberry, is a North American
species
A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...
of
cranberry
Cranberries are a group of evergreen dwarf shrubs or trailing vines in the subgenus ''Oxycoccus'' of the genus ''Vaccinium''. Cranberries are low, creeping shrubs or vines up to long and in height; they have slender stems that are not th ...
in the
subgenus
In biology, a subgenus ( subgenera) is a taxonomic rank directly below genus.
In the International Code of Zoological Nomenclature, a subgeneric name can be used independently or included in a species name, in parentheses, placed between the ge ...
''
Oxycoccus''.
The name cranberry comes from shape of the flower
stamen
The stamen (: stamina or stamens) is a part consisting of the male reproductive organs of a flower. Collectively, the stamens form the androecium., p. 10
Morphology and terminology
A stamen typically consists of a stalk called the filament ...
, which looks like a
crane's beak.
Description
''Vaccinium macrocarpon'' is a perennial
shrub
A shrub or 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 by their multiple ...
, often ascending (trailing along the surface of the ground for some distance but then curving upwards). The leaf blades are abaxially
glaucous
''Glaucous'' (, ) is used to describe the pale grey or bluish-green appearance of the surfaces of some plants, as well as in the names of birds, such as the glaucous gull (''Larus hyperboreus''), glaucous-winged gull (''Larus glaucescens''), ...
and green adaxially. The leaf blades are long,
narrowly elliptic to elliptic, and in rare cases oblong.
The
pedicels
In botany, a pedicel is a stem that attaches a single flower to the inflorescence
In botany, an inflorescence is a group or cluster of flowers arranged on a plant's Plant stem, stem that is composed of a main branch or a system of branch ...
are nodding and slender, measuring . It produces white or pink flowers with four petals,
followed by
sour-tasting red or pink
berries
A berry is a small, pulpy, and often edible fruit. Typically, berries are juicy, rounded, brightly colored, sweet, sour or tart, and do not have a stone fruit, stone or pit (fruit), pit although many wikt:pip#Etymology 2, pips or seeds may be p ...
across.
Distribution
''Vaccinium macrocarpon'' is
native
Native may refer to:
People
* '' Jus sanguinis'', nationality by blood
* '' Jus soli'', nationality by location of birth
* Indigenous peoples, peoples with a set of specific rights based on their historical ties to a particular territory
** Nat ...
to central and eastern Canada (
Ontario
Ontario is the southernmost Provinces and territories of Canada, province of Canada. Located in Central Canada, Ontario is the Population of Canada by province and territory, country's most populous province. As of the 2021 Canadian census, it ...
to
Newfoundland
Newfoundland and Labrador is the easternmost province of Canada, in the country's Atlantic region. The province comprises the island of Newfoundland and the continental region of Labrador, having a total size of . As of 2025 the population ...
) and the northeastern and north-central United States (
Northeast
The points of the compass are a set of horizontal, radially arrayed compass directions (or azimuths) used in navigation and cartography. A '' compass rose'' is primarily composed of four cardinal directions—north, east, south, and west—eac ...
,
Great Lakes Region
The Great Lakes region of Northern America is a binational Canadian– American region centered on the Great Lakes that includes the U.S. states of Illinois, Indiana, Michigan, Minnesota, New York, Ohio, Pennsylvania, and Wisconsin and the Ca ...
, and
Appalachians
The Appalachian Mountains, often called the Appalachians, are a mountain range in eastern to northeastern North America. The term "Appalachian" refers to several different regions associated with the mountain range, and its surrounding terrain ...
as far south as
North Carolina
North Carolina ( ) is a U.S. state, state in the Southeastern United States, Southeastern region of the United States. It is bordered by Virginia to the north, the Atlantic Ocean to the east, South Carolina to the south, Georgia (U.S. stat ...
and
Tennessee
Tennessee (, ), officially the State of Tennessee, is a landlocked U.S. state, state in the Southeastern United States, Southeastern region of the United States. It borders Kentucky to the north, Virginia to the northeast, North Carolina t ...
). It is also
naturalized
Naturalization (or naturalisation) is the legal act or process by which a non-national of a country acquires the nationality of that country after birth. The definition of naturalization by the International Organization for Migration of the ...
in parts of Europe and scattered locations in North America along western Canada (
British Columbia
British Columbia is the westernmost Provinces and territories of Canada, province of Canada. Situated in the Pacific Northwest between the Pacific Ocean and the Rocky Mountains, the province has a diverse geography, with rugged landscapes that ...
) and the western U.S. (
West Coast).
Uses
The berries are edible,
for which the species is grown commercially as a
cash crop
A cash crop, also called profit crop, is an Agriculture, agricultural crop which is grown to sell for profit. It is typically purchased by parties separate from a farm. The term is used to differentiate a marketed crop from a staple crop ("subsi ...
. Many cranberries are grown in wetland soils consisting of alternating layers of organic matter and sand; modern harvesting techniques include temporarily flooding fields, shaking berries loose, and gathering the floating berries. Common uses of the berries includes sauce, jelly,
juice
Juice is a drink made from the extraction or Cold-pressed juice, pressing of the natural liquid contained in fruit and vegetables. It can also refer to liquids that are flavored with concentrate or other biological food sources, such as meat ...
, and dried fruit. There is some evidence suggesting that the berries or their juice could be useful in treating or preventing certain
urinary tract infection
A urinary tract infection (UTI) is an infection that affects a part of the urinary tract. Lower urinary tract infections may involve the bladder (cystitis) or urethra (urethritis) while upper urinary tract infections affect the kidney (pyel ...
s, but this is not certain yet and thus is not substitute for medical management. Some research suggests cranberries may suppress asymptomatic ''
Helicobacter pylori
''Helicobacter pylori'', previously known as ''Campylobacter pylori'', is a gram-negative, Flagellum#bacterial, flagellated, Bacterial cellular morphologies#Helical, helical bacterium. Mutants can have a rod or curved rod shape that exhibits l ...
'' colonization, but they seem to be an inferior treatment compared to antibiotic therapy in symptomatic patients.
See also
*
Cranberry fruit rot, which affects ''V. macrocarpon''
References
External links
Lady Bird Johnson Wildflower Center, University of Texas*
{{Authority control
Flora of Eastern Canada
macrocarpon
Crops originating from North America
Aquatic plants
Plants described in 1789
Fruits originating in North America
Flora of the Northeastern United States
Flora of the Southeastern United States
Flora of the North-Central United States
Flora of Oregon
Flora of Washington (state)
Flora of British Columbia
macrocarpon
Flora without expected TNC conservation status
Taxa named by William Aiton