''Rubus occidentalis'' is a species of ''

Rubus ''Rubus'' is a large and diverse genus of flowering plants in the rose family, Rosaceae, subfamily Rosoideae, with over 1,350 species. Raspberries, blackberries, and dewberries are common, widely distributed members of the genus. Most of these ...

'' native to eastern

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 ...

. Its

common name In biology, a common name of a taxon or organism (also known as a vernacular name, English name, colloquial name, country name, popular name, or farmer's name) is a name that is based on the normal language of everyday life; and is often contrast ...

black raspberry is shared with other closely related species. Other names occasionally used include bear's eye blackberry, black cap, black cap raspberry, and scotch cap.

Description

''Rubus occidentalis'' is a

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 ...

growing to tall. The

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

pinnate Pinnation (also called pennation) is the arrangement of feather-like or multi-divided features arising from both sides of a common axis. Pinnation occurs in biological morphology, in crystals, such as some forms of ice or metal crystals, and in ...

, with five leaflets on leaves, strong-growing stems in their first year, and three leaflets on leaves on flowering branchlets. The

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 are distinct in having long, slender

sepal A sepal () is a part of the flower of angiosperms (flowering plants). Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom., p. 106 The term ''sepalum'' was coined b ...

s long, more than twice as long as the

petal Petals are modified Leaf, leaves that surround the reproductive parts of flowers. They are often advertising coloration, brightly colored or unusually shaped to attract pollinators. All of the petals of a flower are collectively known as the ''c ...

s. The round-shaped

fruit In botany, a fruit is the seed-bearing structure in flowering plants that is formed from the ovary after flowering. Fruits are the means by which flowering plants (also known as angiosperms) disseminate their seeds. Edible fruits in particu ...

is a diameter aggregation of

drupe In botany, a drupe (or stone fruit) is an indehiscent fruit in which an outer fleshy part (exocarp, or skin, and mesocarp, or flesh) surrounds a single shell (the ''pit'', ''stone'', or '' pyrena'') of hardened endocarp with a seed (''kernel'') ...

lets; it is edible, and has a high content of

anthocyanin Anthocyanins (), also called anthocyans, are water-soluble vacuolar pigments that, depending on their pH, may appear red, purple, blue, or black. In 1835, the German pharmacist Ludwig Clamor Marquart gave the name Anthokyan to a chemical compo ...

s and

ellagic acid Ellagic acid is a polyphenol found in numerous fruits and vegetables. It is the dilactone of hexahydroxydiphenic acid. Name The name comes from the French term ''acide ellagique'', from the word ''galle'' spelled backwards because it can be ob ...

. Long stems also called canes grow up to in length, usually forming an arch shape, but sometimes upright. Canes have curved, sharp thorns, while immature canes are unbranched and have a whitish bloom. The black raspberry is related to the

red raspberry ''Rubus idaeus'' (raspberry, also called red raspberry or occasionally European red raspberry to distinguish it from other raspberry species) is a red-fruited species of ''Rubus'' native to Europe and northern Asia and commonly cultivated in othe ...

Rubus idaeus ''Rubus idaeus'' (raspberry, also called red raspberry or occasionally European red raspberry to distinguish it from other raspberry species) is a red-fruited species of ''Rubus'' native to Europe and northern Asia and commonly cultivated in othe ...

'' and ''

Rubus strigosus ''Rubus strigosus'', the American red raspberry or American raspberry, is a species of ''Rubus'' native to much of North America. It has often been treated as a variety or subspecies of the closely related Eurasian '' Rubus idaeus'' (red raspber ...

'', sharing the white underside of leaves, and fruit that readily detaches from the carpel.

Habitat

The plant grows in disturbed areas, especially those that are logged or cut. It is also found in meadows, and near streams and lakes, trails or roadways. The native range of ''Rubus occidentalis'' extends as far east as

New Brunswick New Brunswick (french: Nouveau-Brunswick, , locally ) is one of the thirteen provinces and territories of Canada. It is one of the three Maritime provinces and one of the four Atlantic provinces. It is the only province with both English and ...

, as far west as

Nebraska Nebraska () is a state in the Midwestern region of the United States. It is bordered by South Dakota to the north; Iowa to the east and Missouri to the southeast, both across the Missouri River; Kansas to the south; Colorado to the southwe ...

, as far north as

Quebec Quebec ( ; )According to the Canadian government, ''Québec'' (with the acute accent) is the official name in Canadian French and ''Quebec'' (without the accent) is the province's official name in Canadian English is one of the thirtee ...

, and as far south as

Mississippi Mississippi () is a state in the Southeastern region of the United States, bordered to the north by Tennessee; to the east by Alabama; to the south by the Gulf of Mexico; to the southwest by Louisiana; and to the northwest by Arkansas. Miss ...

Pests and diseases

Apple mosaic virus, black raspberry necrosis virus, ''

Elsinoë veneta ''Elsinoë veneta'' is a plant pathogen, which is the causal agent of anthracnose of raspberry.raspberry bushy dwarf virus ''Idaeovirus'' is a genus of positive-sense ssRNA viruses that contains two species: ''Raspberry bushy dwarf virus'' (RBDV) and ''Privet idaeovirus''. RBDV has two host-dependent clades: one for raspberries; the other for grapevines. Infection ...

, raspberry leaf curl virus, '' Rhizobium radiobacter'', ''

Rhizobium rhizogenes ''Rhizobium rhizogenes'' (formerly ''Agrobacterium rhizogenes'') is a Gram-negative soil bacterium that produces hairy root disease in dicotyledonous plants. ''R. rhizogenes'' induces the formation of proliferative multiple-branched adventitious ...

'', ''Didymella applanata'', ''

Monilinia fructigena ''Monilinia fructigena'' is a plant pathogen in the fungus kingdom causing a fruit rot of apples, pears, plums, peaches and cherries. Classification Three ''Monilinia'' species cause brown rot of fruit (''Monilinia laxa, Monilinia fructicola, ...

'', '' Peronospora sparsa'', and ''

Peridroma saucia ''Peridroma saucia'', the pearly underwing or variegated cutworm, is a moth of the family Noctuidae. The species was first described by Jacob Hübner in 1808. It is found in North and South America, Europe, Asia and Africa. The variegated cutwor ...

'' all infest black raspberries.

Cultivars

Common black raspberry cultivars include: Black Hawk, Bristol, Jewel, Cumberland, Morrison, Munger, and Logan.

Commercial growing and processing

The center for black raspberry production is in the

Willamette Valley The Willamette Valley ( ) is a long valley in Oregon, in the Pacific Northwest region of the United States. The Willamette River flows the entire length of the valley and is surrounded by mountains on three sides: the Cascade Range to the east, ...

Oregon Oregon () is a U.S. state, state in the Pacific Northwest region of the Western United States. The Columbia River delineates much of Oregon's northern boundary with Washington (state), Washington, while the Snake River delineates much of it ...

. The main cultivar, 'Munger', is grown on about . Other

cultivars A cultivar is a type of Horticulture, cultivated plant that people have selected for desired phenotypic trait, traits and when Plant propagation, propagated retain those traits. Methods used to propagate cultivars include: division, root and st ...

include 'John Robertson', 'Allen', 'Jewel', 'Blackhawk', 'Macblack', 'Plum Farmer', 'Dundee', 'Hanover', and 'Huron'. The plants are summer tipped by hand, mechanically pruned in winter and then machine harvested. The yields are generally low per acre and this is why the fruits are often expensive. The species has been used in the breeding of many ''Rubus'' hybrids; those between red and black raspberries are common under the name purple raspberries; 'Brandywine', 'Royalty', and 'Estate' are examples of purple raspberry cultivars. Wild purple raspberries have also been found in various places in northeastern North America where the two parental species co-occur and occasionally hybridize naturally. The berries are typically dried or frozen, made into

purée A purée (or mash) is cooked food, usually vegetables, fruits or legumes, that has been ground, pressed, blended or sieved to the consistency of a creamy paste or liquid. Purées of specific foods are often known by specific names, e.g., apples ...

s and juices, or processed as

colorant A colourant/colour additive (British spelling) or colorant/color additive (American spelling) is a substance that is added or applied in order to change the colour of a material or surface. Colourants can be used for many purposes including printing ...

s. Fresh berries are also marketed in season. Two well-known

liqueur A liqueur (; ; ) is an alcoholic drink composed of spirits (often rectified spirit) and additional flavorings such as sugar, fruits, herbs, and spices. Often served with or after dessert, they are typically heavily sweetened and un-aged beyond ...

s based predominantly on black raspberry fruit include France's

Chambord Liqueur Royale de France Chambord () is a 16.5% abv raspberry liqueur modelled after a liqueur produced in the Loire Valley of France during the late 17th century. The Chambord product brand has been owned and produced by the Brown-Forman Corporation since 2006. Cham ...

and South Korea's various kinds of Bokbunja-ju. File:Pomological Watercolor POM00007255.jpg, Black raspberry —

watercolor Watercolor (American English) or watercolour (British English; see spelling differences), also ''aquarelle'' (; from Italian diminutive of Latin ''aqua'' "water"), is a painting method”Watercolor may be as old as art itself, going back to t ...

, 1893 File:Black raspberries in a basket, side view.jpg, A

punnet A punnet is a small box or square basket for the gathering, transport and sale of fruit and vegetables, typically for small berries susceptible to bruising, spoiling and squashing that are therefore best kept in small rigid containers. Punnets s ...

of black raspberries

References

External links

*
Biota of North America Program 2014 county distribution map
* {{Taxonbar, from=Q7376217 occidentalis Berries Flora of Canada Flora of the Eastern United States Garden plants Medicinal plants Plants described in 1753 Taxa named by Carl Linnaeus Symbols of Alabama