''Phytolacca dioica'', commonly known as ombú, is a massive evergreen

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 ...

native to the

Pampa The Pampas (from the qu, pampa, meaning "plain") are fertile South American low grasslands that cover more than and include the Argentine provinces of Buenos Aires, La Pampa, Santa Fe, Entre Ríos, and Córdoba; all of Uruguay; and Brazi ...

Argentina Argentina (), officially the Argentine Republic ( es, link=no, República Argentina), is a country in the southern half of South America. Argentina covers an area of , making it the List of South American countries by area, second-largest ...

. As its

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 ...

suggests, it is

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 reproducti ...

, with male and female flowers on separate plants. It has an umbrella-like

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 ...

that spreads to a diameter of 12 to 15 meters (40 to 50 feet) and can attain a height of 12 to 18 meters (40 to 60 feet). Because it is derived from

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 o ...

ancestors, its trunk consists of anomalous secondary thickening rather than true

wood Wood is a porous and fibrous structural tissue found in the stems and roots of trees and other woody plants. It is an organic materiala natural composite of cellulose fibers that are strong in tension and embedded in a matrix of lignin ...

. As a result, the ombú grows fast but its wood is soft and spongy enough to be cut with a knife. These properties have led it to be used in the art of

bonsai Bonsai ( ja, 盆栽, , tray planting, ) is the Japanese art of growing and training miniature trees in pots, developed from the traditional Chinese art form of '' penjing''. Unlike ''penjing'', which utilizes traditional techniques to produc ...

, as it is easily manipulated to create the desired effect. Since the sap is poisonous, the ombú is not grazed by cattle and is immune to locusts and other pests. For similar reasons, the leaves are sometimes used as a laxative or purgative. It is a symbol of

Uruguay Uruguay (; ), officially the Oriental Republic of Uruguay ( es, República Oriental del Uruguay), is a country in South America. It shares borders with Argentina to its west and southwest and Brazil to its north and northeast; while bordering ...

and

, and of

gaucho A gaucho () or gaúcho () is a skilled horseman, reputed to be brave and unruly. The figure of the gaucho is a folk symbol of Argentina, Uruguay, Rio Grande do Sul in Brazil, and the south of Chilean Patagonia. Gauchos became greatly admired and ...

culture, as its canopy is quite distinguishable from afar and provides comfort and shelter from sun and rain. This tree is categorized in the same genus as the

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 ...

pokeweed ''Phytolacca americana'', also known as American pokeweed, pokeweed, poke sallet, dragonberries, and inkberry, is a poisonous, herbaceous perennial plant in the pokeweed family Phytolaccaceae. This pokeweed grows . It has simple leaves on green ...

. The species is also cultivated in

Southern California Southern California (commonly shortened to SoCal) is a geographic and cultural region that generally comprises the southern portion of the U.S. state of California. It includes the Los Angeles metropolitan area, the second most populous urban ...

as a shade tree. Ombú has been declared as a minor invasive species (category 3) in South Africa, where it is widely planted.Glen, Hugh & Van Wyk, Braam (2016) Guide to Trees introduced into South Africa. pp.232-233. Struik Nature, Cape Town

Gallery

Phytolacca dioca (1).JPG,

Magenta Magenta () is a color that is variously defined as pinkish- purplish- red, reddish-purplish-pink or mauvish-crimson. On color wheels of the RGB (additive) and CMY (subtractive) color models, it is located exactly midway between red and blu ...

petioles and leaf venation Phytolacca dioica, blom, Elandsfontein, b.jpg, Phytolacca dioica (8671566611).jpg, Phytolacca dioica MHNT.BOT.2009.13.32.jpg,

References

dioica Trees of Argentina Trees of Uruguay Dioecious plants {{Tree-stub