''Vitis riparia'' Michx, with

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 ...

s riverbank grape or frost grape, is a vine indigenous to

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 ...

. As a climbing or trailing

vine A vine (Latin ''vīnea'' "grapevine", "vineyard", from ''vīnum'' "wine") is any plant with a growth habit of trailing or scandent (that is, climbing) stems, lianas or runners. The word ''vine'' can also refer to such stems or runners themselv ...

, it is widely distributed across central and eastern

Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tot ...

and the central and northeastern parts of the

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...

, from

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 ...

Texas Texas (, ; Spanish language, Spanish: ''Texas'', ''Tejas'') is a state in the South Central United States, South Central region of the United States. At 268,596 square miles (695,662 km2), and with more than 29.1 million residents in 2 ...

, and eastern

Montana Montana () is a state in the Mountain West division of the Western United States. It is bordered by Idaho to the west, North Dakota and South Dakota to the east, Wyoming to the south, and the Canadian provinces of Alberta, British Columbi ...

Nova Scotia Nova Scotia ( ; ; ) 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. Nova Scotia is Latin for "New Scotland". Most of the population are native Eng ...

. There are reports of isolated populations in the northwestern USA, but these are probably

naturalized Naturalization (or naturalisation) is the legal act or process by which a non-citizen of a country may acquire citizenship or nationality of that country. It may be done automatically by a statute, i.e., without any effort on the part of the in ...

. It is long-lived and capable of reaching into the upper

canopy Canopy may refer to: Plants * Canopy (biology), aboveground portion of plant community or crop (including forests) * Canopy (grape), aboveground portion of grapes Religion and ceremonies * Baldachin or canopy of state, typically placed over an a ...

of the tallest

tree In botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be narrower, including only woody plants with secondary growth, plants that are ...

s. It produces dark fruit that are appealing to both birds and people, and has been used extensively in commercial viticulture as

grafted Grafting or graftage is a horticultural technique whereby tissues of plants are joined so as to continue their growth together. The upper part of the combined plant is called the scion () while the lower part is called the rootstock. The succ ...

rootstock A rootstock is part of a plant, often an underground part, from which new above-ground growth can be produced. It could also be described as a stem with a well developed root system, to which a bud from another plant is grafted. It can refer to a ...

and in

hybrid grape Hybrid grapes are grape varieties that are the product of a Hybrid (biology), crossing of two or more ''Vitis'' species. This is in contrast to crossings between grape varieties of the same species, typically ''Vitis vinifera'', the European grape ...

breeding programs. ''Riverbank grape'' is a translation of the scientific name ''Vitis riparia''; means "of riverbanks" in

Latin Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power of the ...

, deriving from "riverbank".

Description

Mature

s have loose, fissured bark, and may attain several inches in diameter. Leaves are alternate, often with opposite

tendril In botany, a tendril is a specialized stem, leaf or petiole with a threadlike shape used by climbing plants for support and attachment, as well as cellular invasion by parasitic plants such as ''Cuscuta''. There are many plants that have tendr ...

s or inflorescences, coarsely toothed, long and broad, sometimes with sparse hairs on the underside of

vein Veins are blood vessels in humans and most other animals that carry blood towards the heart. Most veins carry deoxygenated blood from the tissues back to the heart; exceptions are the pulmonary and umbilical veins, both of which carry oxygenated b ...

s. ''V. riparia'' is functionally

dioecious Dioecy (; ; adj. dioecious , ) is a characteristic of a species, meaning that it has distinct individual organisms (unisexual) that produce male or female gametes, either directly (in animals) or indirectly (in seed plants). Dioecious reproductio ...

. The

inflorescence An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed o ...

is a

panicle A panicle is a much-branched inflorescence. (softcover ). Some authors distinguish it from a compound spike inflorescence, by requiring that the flowers (and fruit) be pedicellate (having a single stem per flower). The branches of a panicle are of ...

long and loose, and 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 small, fragrant, and white or greenish in color. ''V. riparia'' blooms sometime between April and June and in August or September produces a small blue-black

berry 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 or pit, although many pips or seeds may be present. Common examples are strawberries, raspb ...

(

grape A grape is a fruit, botanically a berry, of the deciduous woody vines of the flowering plant genus ''Vitis''. Grapes are a non- climacteric type of fruit, generally occurring in clusters. The cultivation of grapes began perhaps 8,000 years ago, ...

) with a bloom, seeded, juicy, edible, vinous in flavor, lacking the "foxy" characteristics of ''

Vitis labrusca ''Vitis labrusca'', the fox grape, is a species of grapevines belonging to the ''Vitis'' genus in the flowering plant family Vitaceae. The vines are native to eastern North America and are the source of many grape cultivars, including Catawba, Co ...

'', but usually quite

sour The gustatory system or sense of taste is the sensory system that is partially responsible for the perception of taste (flavor). Taste is the perception produced or stimulated when a substance in the mouth reacts chemically with taste receptor ...

and

herbaceous Herbaceous plants are vascular plants that have no persistent woody stems above ground. This broad category of plants includes many perennials, and nearly all annuals and biennials. Definitions of "herb" and "herbaceous" The fourth edition of t ...

. ''V. riparia'' has a wide range and may deviate considerably in detail from the above general description. White berries,

perfect flower Plant reproductive morphology is the study of the physical form and structure (the morphology) of those parts of plants directly or indirectly concerned with sexual reproduction. Among all living organisms, flowers, which are the reproductive s ...

s, large clusters, large berries, and sweet fruit are among the known variations. However, some observers consider such variations as evidence of natural hybridization with other species of

Habitat

''Vitis riparia'' has the largest geographical range of any of the North American

Vitis ''Vitis'' (grapevine) is a genus of 79 accepted species of vining plants in the flowering plant family Vitaceae. The genus is made up of species predominantly from the Northern Hemisphere. It is economically important as the source of grapes, b ...

species. It is present across nearly the entire eastern half of North America, from southern

, to

Piedmont, Alabama Piedmont is a city in Calhoun and Cherokee counties in the U.S. state of Alabama. The population was 4,400 at the 2020 census. It is included in the Anniston-Oxford, Alabama Metropolitan Statistical Area. The city is approximately one and a h ...

, and the

Carolinas The Carolinas are the U.S. states of North Carolina and South Carolina, considered collectively. They are bordered by Virginia to the north, Tennessee to the west, and Georgia to the southwest. The Atlantic Ocean is to the east. Combining Nort ...

but absent of the coastal plains and the westerner parts of North America of the

great plains The Great Plains (french: Grandes Plaines), sometimes simply "the Plains", is a broad expanse of flatland in North America. It is located west of the Mississippi River and east of the Rocky Mountains, much of it covered in prairie, steppe, an ...

. Variants of the species have been observed as far north as

Riding Mountain National Park Riding Mountain National Park is a national park in Manitoba, Canada. The park is located within Treaty 2 Territory and sits atop the Manitoba Escarpment. Consisting of a protected area , the forested parkland stands in sharp contrast to the sur ...

Manitoba Manitoba ( ) is a Provinces and territories of Canada, province of Canada at the Centre of Canada, longitudinal centre of the country. It is Canada's Population of Canada by province and territory, fifth-most populous province, with a population o ...

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 ...

, and

North Dakota North Dakota () is a U.S. state in the Upper Midwest, named after the Native Americans in the United States, indigenous Dakota people, Dakota Sioux. North Dakota is bordered by the Canadian provinces of Saskatchewan and Manitoba to the north a ...

. In the wild, the vine thrives along exposed areas with good sun exposure and adequate soil moisture, such as riverbanks, forest clearings, fence lines and along road sides. The species has adapted to a variety of soil chemistries. Frost grapes (Southeast Michigan)

Frost grapes and leaves (Southeast Michigan)

Cold hardiness and disease resistance

Some ''V. riparia'' vines have been known to withstand temperatures as low as . The foliage is typically resistant to

mildew Mildew is a form of fungus. It is distinguished from its closely related counterpart, mould, largely by its colour: moulds appear in shades of black, blue, red, and green, whereas mildew is white. It appears as a thin, superficial growth consi ...

and

black rot Black rot is a name used for various diseases of cultivated plants caused by fungi or bacteria, producing dark brown discoloration and decay in the leaves of fruit and vegetables: * A disease of the apple, pear and quince caused by a fungus ('' Botr ...

, and the roots resistant to

phylloxera Grape phylloxera is an insect pest of commercial grapevines worldwide, originally native to eastern North America. Grape phylloxera (''Daktulosphaira vitifoliae'' (Fitch 1855) belong to the family Phylloxeridae, within the order Hemiptera, bugs ...

. The berries, however, are often sensitive to mildew and black rot if the vine is exposed to prolonged wet and humid conditions.

Uses

Perhaps the most significant agricultural usage of ''V. riparia'' is as grafted

for

Vitis vinifera ''Vitis vinifera'', the common grape vine, is a species of flowering plant, native to the Mediterranean region, Central Europe, and southwestern Asia, from Morocco and Portugal north to southern Germany and east to northern Iran. There are curre ...

. Important advantages of the use of ''V. riparia'' (and hybrids between it and other

species) include resistance to

and adaptation to variant soil types. Due to the extensive cold hardiness and fungal disease resistance of this species, it has been used extensively in grape breeding programs to transfer cold hardy and disease resistant

genes In biology, the word gene (from , ; "...Wilhelm Johannsen coined the word gene to describe the Mendelian units of heredity..." meaning ''generation'' or ''birth'' or ''gender'') can have several different meanings. The Mendelian gene is a ba ...

to domesticated grapes. The French-American

hybrid grapes Hybrid grapes are grape varieties that are the product of a crossing of two or more ''Vitis'' species. This is in contrast to crossings between grape varieties of the same species, typically ''Vitis vinifera'', the European grapevine. Hybrid grap ...

are notable examples of these attempts. ''V. riparia'' has been used extensively for over a hundred years to create hardy hybrids. Many ''V. riparia'' hybrids are currently being used and investigated by plant breeders and in breeding programs such as those conducted by the

University of Minnesota The University of Minnesota, formally the University of Minnesota, Twin Cities, (UMN Twin Cities, the U of M, or Minnesota) is a public university, public Land-grant university, land-grant research university in the Minneapolis–Saint Paul, Tw ...

's horticulture program in an effort to make a commercially viable wine grape that can survive the northern climate of the

Upper Midwest The Upper Midwest is a region in the northern portion of the U.S. Census Bureau's Midwestern United States. It is largely a sub-region of the Midwest. Although the exact boundaries are not uniformly agreed-upon, the region is defined as referring ...

. Examples of commercially important cultivars with significant ''V. Riparia'' ancestry include

Baco noir Baco noir (pronounced BA-koh NWAHR) is a hybrid red wine grape variety produced by Francois Baco from a cross of ''Vitis vinifera var.'' Folle blanche, a French wine grape, and an unknown variety of ''Vitis riparia'' indigenous to North America. ...

Marechal Foch Ferdinand Foch ( , ; 2 October 1851 – 20 March 1929) was a French general and military theorist who served as the Supreme Allied Commander during the First World War. An aggressive, even reckless commander at the First Marne, Flanders and Art ...

, Triomphe d'Alsace and Frontenac. While ''V. riparia'' shares many important characteristics with its cousin, ''

'', the small size of the berry (making it prone to predation by birds), the high acidity of its fruit (often up to 5% titratable acidity), the intense pigment of its juice, and the presence of

aromas in wine produced from it have made it unusable on its own for commercial viticulture. These grapes are sometimes used to make flavorful homemade jellies,

jam Jam is a type of fruit preserve. Jam or Jammed may also refer to: Other common meanings * A firearm malfunction * Block signals ** Radio jamming ** Radar jamming and deception ** Mobile phone jammer ** Echolocation jamming Arts and ente ...

s, and

wine Wine is an alcoholic drink typically made from fermented grapes. Yeast consumes the sugar in the grapes and converts it to ethanol and carbon dioxide, releasing heat in the process. Different varieties of grapes and strains of yeasts are m ...

Gallery

File:Vitis riparia HabitusLeavesFruits BotGardBln0906.JPG, Botanical garden in

Berlin Berlin ( , ) is the capital and largest city of Germany by both area and population. Its 3.7 million inhabitants make it the European Union's most populous city, according to population within city limits. One of Germany's sixteen constitue ...

, Germany. File:Vitis riparia Weinsberg 20071016.jpg, Vitis riparia in Germany File:Vitis riparia, Rouge Park.jpg, Ontario, Canada File:Vitis Riparia.JPG, Vitis riparia leaf File:Riparia gloire de Montpellier feuille Cherves.jpg, Riparia gloire de Montpellier (rootstock)

References

{{Authority control

riparia ''Riparia'' is a genus of passerine birds in the swallow family Hirundinidae. These are small or medium-sized swallows, ranging from in length. They are brown above and mainly white below, and all have a dark breast band. They are closely ass ...

Flora of the Northeastern United States Plants described in 1803 Flora of the Southeastern United States Flora of the North-Central United States Flora of the South-Central United States Flora of Eastern Canada Flora of Western Canada Flora of the Northwestern United States Flora without expected TNC conservation status