''Viola adunca'' is a species of

violet Violet may refer to: Common meanings * Violet (color), a spectral color with wavelengths shorter than blue * One of a list of plants known as violet, particularly: ** ''Viola'' (plant), a genus of flowering plants Places United States * Viol ...

known by the common names hookedspur violet, early blue violet, sand violet, and western dog violet. It is native to meadows and forests of western North America, Canada, and the northern contiguous United States.

Description

This is a hairy, compact plant growing from a small

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 hori ...

system. The leaves are spade- or heart-shaped, sometimes with broadly wavy margins. They are generally 0.5 to 4 centimeters long. The single-flowered

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 ...

grows at the end of a very thin peduncle reaching about high. The nodding flower is a violet about long, with five purple petals. The lower three petals have white bases and purple veining. The two side petals are white-bearded near the throat. The upper two petals may have hooked spurs at their tips. It is a

perennial A perennial plant or simply perennial is a plant that lives more than two years. The term ('' per-'' + '' -ennial'', "through the years") is often used to differentiate a plant from shorter-lived annuals and biennials. The term is also wide ...

blooming in late spring. There are several varieties of ''V. adunca''; a white-petaled form has been noted in

Yosemite National Park Yosemite National Park ( ) is an American national park in California, surrounded on the southeast by Sierra National Forest and on the northwest by Stanislaus National Forest. The park is managed by the National Park Service and covers an ar ...

. It has also been observed in Southern Ontario in

tall grass prairie The tallgrass prairie is an ecosystem native to central North America. Historically, natural and anthropogenic fire, as well as grazing by large mammals (primarily bison) provided periodic disturbances to these ecosystems, limiting the encroac ...

s on the sand plain and in black oak savannas.

Ecology

Viola adunca is the larval host plant of Myrtle's silverspot. Bees and other insects pollinate it. Polites mardon uses it as a nectar source, and birds and mice use the seed as a food source.

Conservation status in the United States

The species is listed as endangered in

Massachusetts Massachusetts (Massachusett language, Massachusett: ''Muhsachuweesut assachusett writing systems, məhswatʃəwiːsət'' English: , ), officially the Commonwealth of Massachusetts, is the most populous U.S. state, state in the New England ...

and in

Connecticut Connecticut () is the southernmost state in the New England region of the Northeastern United States. It is bordered by Rhode Island to the east, Massachusetts to the north, New York to the west, and Long Island Sound to the south. Its cap ...

Uses

The leaves and flowers are edible, and can be eaten in salads, as potherbs, or brewed as tea. These plant parts are high in vitamins A and C. However, the rhizomes, fruit, and seeds are poisonous to humans and can cause upset stomach, intestinal problems, respiratory and circulatory depression.

Native American ethnobotany

The Blackfoot apply an

infusion Infusion is the process of extracting chemical compounds or flavors from plant material in a solvent such as water, oil or alcohol, by allowing the material to remain suspended in the solvent over time (a process often called steeping). An inf ...

of the roots and leaves to sore and swollen joints, give an infusion of the leaves and roots to asthmatic children, and use the plant to dye their arrows blue. The

Dakelh The Dakelh (pronounced ) or Carrier are the indigenous people of a large portion of the Central Interior of British Columbia, Canada. The "Carrier" name was derived from an English translation of ''Aghele'', the name from the neighbouring Sekani ...

take a

decoction Decoction is a method of extraction by boiling herbal or plant material (which may include stems, roots, bark and rhizomes) to dissolve the chemicals of the material. It is the most common preparation method in various herbal-medicine systems. Dec ...

of the entire plant for stomach pain, the

Klallam Klallam (also Clallam, although the spelling with "K" is preferred in all four modern Klallam communities) refers to four related indigenous Native American/First Nations communities from the Pacific Northwest of North America. The Klallam cult ...

apply 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 ...

of smashed flowers to the chest or side for pain,Gunther, Erna, 1973, Ethnobotany of Western Washington, Seattle. University of Washington Press. Revised edition, page 40 the

Makah The Makah (; Klallam: ''màq̓áʔa'')Renker, Ann M., and Gunther, Erna (1990). "Makah". In "Northwest Coast", ed. Wayne Suttles. Vol. 7 of '' Handbook of North American Indians'', ed. William C. Sturtevant. Washington, D.C.: Smithsonian Instit ...

chew the roots and leaves while giving birth, and the

Tolowa The Tolowa people or Taa-laa-wa Dee-ni’ are a Native American people of the Athabaskan-speaking ethno-linguistic group. Two rancherias (Smith River and Elk Valley) still reside in their traditional territory in northwestern California. Tho ...

apply a poultice of chewed leaves to sore eyes.Baker, Marc A., 1981, The Ethnobotany of the Yurok, Tolowa and Karok Indians of Northwest California, Humboldt State University, M.A. Thesis, page 62

References

External links

* * {{Taxonbar, from=Q2705497 adunca Flora of California Flora of Michigan Flora of the United States Flora of Canada Plants used in traditional Native American medicine Edible plants