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''Rubus parviflorus'', commonly called thimbleberry, (also known as redcaps) 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 the ...
'' native to northern
temperate In geography, the temperate climates of Earth occur in the middle latitudes (23.5° to 66.5° N/S of Equator), which span between the tropics and the polar regions of Earth. These zones generally have wider temperature ranges throughout ...
regions of
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 th ...
. The plant has large hairy leaves and no thorns. It bears edible red fruit similar in appearance to a
raspberry The raspberry is the edible fruit of a multitude of plant species in the genus ''Rubus'' of the rose family, most of which are in the subgenus '' Idaeobatus''. The name also applies to these plants themselves. Raspberries are perennial with ...
, but shorter, almost hemispherical. It has not been commercially developed for the retail berry market, but is cultivated for landscapes.


Description

''Rubus parviflorus'' is a dense
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 tree ...
up to tall with canes no more than in diameter, often growing in large clumps which spread through the plant's underground
rhizome In botany and dendrology, a rhizome (; , ) is a modified subterranean plant stem that sends out roots and shoots from its nodes. Rhizomes are also called creeping rootstalks or just rootstalks. Rhizomes develop from axillary buds and grow ...
. Unlike many other members of the genus, it has no prickles. The
leaves A leaf ( : leaves) is any of the principal appendages of a vascular plant stem, usually borne laterally aboveground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", while the leaves, st ...
are
palmate The following is a list of terms which are used to describe leaf morphology in the description and taxonomy of plants. Leaves may be simple (a single leaf blade or lamina) or compound (with several leaflets). The edge of the leaf may be regular ...
, up to across (much larger than most other ''
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 the ...
'' species), with five lobes; they are soft and fuzzy in texture.Flora of North America, ''Rubus parviflorus'' Nuttall, 1818. Thimbleberry
/ref> The flowers are in diameter, with five white petals and numerous pale yellow stamens. The flower of this species is among the largest of any ''Rubus'' species.Lady Bird Johnson Wildflower Center, University of Texas — ''Rubus parviflorus''
. accessed 2.12.2013
The plant produces edible composite fruit approximately in diameter, which ripen to a bright red in mid to late summer. Like
raspberries The raspberry is the edible fruit of a multitude of plant species in the genus ''Rubus'' of the rose family, most of which are in the subgenus '' Idaeobatus''. The name also applies to these plants themselves. Raspberries are perennial with ...
, it is not a true
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, rasp ...
, but instead an
aggregate fruit A raspberry fruit (shown with a raspberry beetle larva) is an aggregate fruit, an aggregate of drupe">raspberry_beetle.html" ;"title="raspberry fruit (shown with a raspberry beetle">raspberry fruit (shown with a raspberry beetle larva) is an aggre ...
of numerous drupelets around a central core. The drupelets may be carefully removed intact, separately from the core, when picked, leaving a hollow fruit which bears a resemblance to a thimble, perhaps giving the plant its name.


Etymology

The
specific epithet In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, bo ...
''parviflorus'' ("small-flowered") is a
misnomer A misnomer is a name that is incorrectly or unsuitably applied. Misnomers often arise because something was named long before its correct nature was known, or because an earlier form of something has been replaced by a later form to which the name ...
, since the species' flower is the largest of the genus. The Concow tribe calls the plant wä-sā’ ( Konkow language).


Distribution and habitat

''Rubus parviflorus'' is native to western North America from
Alaska Alaska ( ; russian: Аляска, Alyaska; ale, Alax̂sxax̂; ; ems, Alas'kaaq; Yup'ik: ''Alaskaq''; tli, Anáaski) is a state located in the Western United States on the northwest extremity of North America. A semi-exclave of the U ...
south as far as
California California is a state in the Western United States, located along the Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the most populous U.S. state and the 3rd largest by area. It is also the m ...
,
New Mexico ) , population_demonym = New Mexican ( es, Neomexicano, Neomejicano, Nuevo Mexicano) , seat = Santa Fe, New Mexico, Santa Fe , LargestCity = Albuquerque, New Mexico, Albuquerque , LargestMetro = Albuquerque metropolitan area, Tiguex , Offi ...
,
Chihuahua Chihuahua may refer to: Places * Chihuahua (state), a Mexican state **Chihuahua (dog), a breed of dog named after the state **Chihuahua cheese, a type of cheese originating in the state **Chihuahua City, the capital city of the state **Chihuahua Mu ...
, and
San Luis Potosí San Luis Potosí (), officially the Free and Sovereign State of San Luis Potosí ( es, Estado Libre y Soberano de San Luis Potosí), is one of the 32 states which compose the Federal Entities of Mexico. It is divided in 58 municipalities and i ...
. Its range extends east to the
Rocky Mountains The Rocky Mountains, also known as the Rockies, are a major mountain range and the largest mountain system in North America. The Rocky Mountains stretch in straight-line distance from the northernmost part of western Canada, to New Mexico ...
and discontinuously to the
Great Lakes Region The Great Lakes region of North America is a binational Canadian–American region that includes portions of the eight U.S. states of Illinois, Indiana, Michigan, Minnesota, New York, Ohio, Pennsylvania and Wisconsin along with the Canadian p ...
. It grows from sea level in the north, up to elevations of in the south. ''R. parviflorus'' typically grows along roadsides, railroad tracks, and in forest clearings, commonly appearing as an early part of the
ecological succession Ecological succession is the process of change in the species structure of an ecological community over time. The time scale can be decades (for example, after a wildfire) or more or less. Bacteria allows for the cycling of nutrients such as car ...
in clear cut and
forest fire A wildfire, forest fire, bushfire, wildland fire or rural fire is an unplanned, uncontrolled and unpredictable fire in an area of combustible vegetation. Depending on the type of vegetation present, a wildfire may be more specifically identi ...
areas. Thimbleberry is found in forest understories with typical flora associates including coastal woodfern (''Dryopteris arguta''), '' Trillium ovatum'' and ''
Smilacina racemosa ''Maianthemum racemosum'', the treacleberry, feathery false lily of the valley, false Solomon's seal, Solomon's plume or false spikenard, is a species of flowering plant native to North America. It is a common, widespread plant with numerous comm ...
''.


Ecology

The
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 partic ...
is consumed by birds and bears, while black-tailed deer browse the young leaves and stems. Larvae of the wasp species ''
Diastrophus kincaidii ''Diastrophus'' is a genus of gall wasps in the family Cynipidae. There are at least eight described species in ''Diastrophus''. Species These eight species belong to the genus ''Diastrophus'': * '' Diastrophus colombianus'' Nieves-Aldrey, 201 ...
'' (thimbleberry gallmaker) develop in large, swollen
gall Galls (from the Latin , 'oak-apple') or ''cecidia'' (from the Greek , anything gushing out) are a kind of swelling growth on the external tissues of plants, fungi, or animals. Plant galls are abnormal outgrowths of plant tissues, similar to be ...
s on ''R. parviflorus'' stems.


Cultivation

''R. parviflorus'' is cultivated by specialty
plant nurseries A nursery is a place where plants are propagated and grown to a desired size. Mostly the plants concerned are for gardening, forestry or conservation biology, rather than agriculture. They include retail nurseries, which sell to the general p ...
as an
ornamental plant Ornamental plants or garden plants are plants that are primarily grown for their beauty but also for qualities such as scent or how they shape physical space. Many flowering plants and garden varieties tend to be specially bred cultivars that ...
, used in traditional,
native plant In biogeography, a native species is indigenous to a given region or ecosystem if its presence in that region is the result of only local natural evolution (though often popularised as "with no human intervention") during history. The term is eq ...
, and
wildlife garden A wildlife garden (or wild garden) is an environment created by a gardener that serves as a sustainable haven for surrounding wildlife. Wildlife gardens contain a variety of habitats that cater to native and local plants, birds, amphibians, ...
s, in
natural landscaping Natural landscaping, also called native gardening, is the use of native plants and adapted species, including trees, shrubs, groundcover, and grasses which are local to the geographic area of the garden. Benefits Maintenance Natural land ...
design, and in habitat restoration projects. The fruit has fragrance. Thimbleberry plants can be propagated most successfully by planting dormant rhizome segments, as well as from seeds or stem cuttings. The flowers support pollinators, including of special value to Native
bee Bees are winged insects closely related to wasps and ants, known for their roles in pollination and, in the case of the best-known bee species, the western honey bee, for producing honey. Bees are a monophyletic lineage within the superfami ...
s,
honeybee A honey bee (also spelled honeybee) is a eusocial flying insect within the genus ''Apis'' of the bee clade, all native to Afro-Eurasia. After bees spread naturally throughout Africa and Eurasia, humans became responsible for the current cosm ...
s, and
bumblebee A bumblebee (or bumble bee, bumble-bee, or humble-bee) is any of over 250 species in the genus ''Bombus'', part of Apidae, one of the bee families. This genus is the only Extant taxon, extant group in the tribe Bombini, though a few extinct r ...
s. The fruit is attractive to various birds and mammals, including bears. It is the larval host and a nectar source for the yellow-banded sphinx moth.


Cultivars

Cultivar A cultivar is a type of cultivated plant that people have selected for desired traits and when propagated retain those traits. Methods used to propagate cultivars include: division, root and stem cuttings, offsets, grafting, tissue culture ...
s of the plant are selected for ornamental qualities, such as for their fragrant flowers and/or attractive fall foliage color. A double-flowered form of the thimbleberry was discovered near
Squamish, British Columbia Squamish (; Sḵwx̱wú7mesh sníchim: Sḵwx̱wú7mesh, ; 2016 census population 19,512) is a community and a district municipality in the Canadian province of British Columbia, located at the north end of Howe Sound on the Sea to Sky Highway. ...
, by Iva Angerman (1903–2008) of
West Vancouver West Vancouver is a district municipality in the province of British Columbia, Canada. A member municipality of the Metro Vancouver Regional District, West Vancouver is to the northwest of the city of Vancouver on the northern side of English Ba ...
. This clone does not appear to be in commerce, but is grown in the Botanic Garden of the University of British Columbia,
Vancouver Vancouver ( ) is a major city in western Canada, located in the Lower Mainland region of British Columbia. As the most populous city in the province, the 2021 Canadian census recorded 662,248 people in the city, up from 631,486 in 2016. ...
, and in the Native Plant Garden of the Royal British Columbia Museum, Victoria.


Uses


Cuisine

Thimbleberry fruits are flatter and softer (more fragile) than raspberries, but similarly have many small seeds. Because the fruit is so soft, it does not pack or ship well, so thimbleberries are rarely cultivated commercially. Wild thimbleberries can be eaten raw or dried (the water content of ripe thimbleberries is quite variable), and can be made into a jam which is sold as a local
delicacy A delicacy is usually a rare and expensive food item that is considered highly desirable, sophisticated, or peculiarly distinctive within a given culture. Irrespective of local preferences, such a label is typically pervasive throughout a r ...
in some parts of their range, notably in the
Keweenaw Peninsula The Keweenaw Peninsula ( , sometimes locally ) is the northernmost part of Michigan's Upper Peninsula. It projects into Lake Superior and was the site of the first copper boom in the United States, leading to its moniker of " Copper Country." A ...
of
Upper Michigan The Upper Peninsula of Michigan – also known as Upper Michigan or colloquially the U.P. – is the northern and more elevated of the two major landmasses that make up the U.S. state of Michigan; it is separated from the Lower Peninsula by ...
. Thimbleberry jam is commonly made by combining equal volumes of berries and sugar and boiling the mixture for two minutes before packing it into jars. Without sugar, the cooked berries, with a distinguishing sweet-sour taste, keep for a few days in the refrigerator.


Traditional medicine

Many parts of the plant were used in
folk medicine Traditional medicine (also known as indigenous medicine or folk medicine) comprises medical aspects of traditional knowledge that developed over generations within the folk beliefs of various societies, including indigenous peoples, before the ...
by Native Americans.US Forest Service Fire Ecology
/ref> A tea made from its leaves or roots was thought to be a treatment for wounds, burns, acne, or digestive problems; a tea made from the canes was thought to be useful as a diuretic. As of 2019, there is no evidence from modern clinical research or practice that ''R. parviflorus'' is effective for treating any disease. Thimbleberry leaves can be used in place of
toilet paper Toilet paper (sometimes called toilet tissue or bathroom tissue) is a tissue paper product primarily used to clean the anus and surrounding anal region of feces after defecation, and to clean the perineal area and external genitalia of ur ...
when in the
wilderness Wilderness or wildlands (usually in the plural), are natural environments on Earth that have not been significantly modified by human activity or any nonurbanized land not under extensive agricultural cultivation. The term has traditionally re ...
.


References


External links

* * * {{Taxonbar, from=Q2614003 parviflorus Berries Flora of North America Canadian cuisine Cuisine of Michigan Bird food plants Butterfly food plants Garden plants of North America Plants described in 1818