''Tabebuia rosea'', also called pink poui, and rosy trumpet tree is a neotropical tree that grows up to and can reach a

diameter at breast height Diameter at breast height, or DBH, is a standard method of expressing the diameter of the trunk or bole of a standing tree. DBH is one of the most common dendrometric measurements. Tree trunks are measured at the height of an adult's breast, ...

of up to . The

Spanish Spanish might refer to: * Items from or related to Spain: **Spaniards are a nation and ethnic group indigenous to Spain **Spanish language, spoken in Spain and many Latin American countries **Spanish cuisine Other places * Spanish, Ontario, Cana ...

name ''roble de sabana'', meaning "savannah oak", is widely used in

Costa Rica Costa Rica (, ; ; literally "Rich Coast"), officially the Republic of Costa Rica ( es, República de Costa Rica), is a country in the Central American region of North America, bordered by Nicaragua to the north, the Caribbean Sea to the no ...

, probably because it often remains in heavily deforested areas and because of the resemblance of its wood to that of oak trees.Hernan Rodriguez Navas. 2007. La Utilidad de las Plantas Medicinales en Costa Rica. EUNA, Heredia, Costa Rica. 213pp. It is the

national tree This is a list of national trees, most official, but some unofficial. National trees See also * National emblem * Floral emblem * List of U.S. State and territory trees References {{DEFAULTSORT:List Of National Trees N Trees In b ...

El Salvador El Salvador (; , meaning " The Saviour"), officially the Republic of El Salvador ( es, República de El Salvador), is a country in Central America. It is bordered on the northeast by Honduras, on the northwest by Guatemala, and on the south b ...

, where it is called "Maquilíshuat".

Names

The tree is known as "tekoma" in

Malaysia Malaysia ( ; ) is a country in Southeast Asia. The federation, federal constitutional monarchy consists of States and federal territories of Malaysia, thirteen states and three federal territories, separated by the South China Sea into two r ...

. The tree is known as "රොබරෝසියා (Robarōsiyā)" in

Sri Lanka Sri Lanka (, ; si, ශ්‍රී ලංකා, Śrī Laṅkā, translit-std=ISO (); ta, இலங்கை, Ilaṅkai, translit-std=ISO ()), formerly known as Ceylon and officially the Democratic Socialist Republic of Sri Lanka, is an ...

Distribution and habitat

This species is distributed from southern

México Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatema ...

, to

Venezuela Venezuela (; ), officially the Bolivarian Republic of Venezuela ( es, link=no, República Bolivariana de Venezuela), is a country on the northern coast of South America, consisting of a continental landmass and many islands and islets in th ...

and

Ecuador Ecuador ( ; ; Quechua: ''Ikwayur''; Shuar: ''Ecuador'' or ''Ekuatur''), officially the Republic of Ecuador ( es, República del Ecuador, which literally translates as "Republic of the Equator"; Quechua: ''Ikwadur Ripuwlika''; Shuar: ''Eku ...

. It has been found growing from sealevel to , in

temperature Temperature is a physical quantity that expresses quantitatively the perceptions of hotness and coldness. Temperature is measured with a thermometer. Thermometers are calibrated in various temperature scales that historically have relied o ...

s ranging from 20 °C to 30 °C on average, with annual

rainfall Rain is water droplets that have condensed from atmospheric water vapor and then fall under gravity. Rain is a major component of the water cycle and is responsible for depositing most of the fresh water on the Earth. It provides water f ...

above 500 mm, and on soils with very variable pH. This tree is often seen in

Neotropic The Neotropical realm is one of the eight biogeographic realms constituting Earth's land surface. Physically, it includes the tropical terrestrial ecoregions of the Americas and the entire South American temperate zone. Definition In bioge ...

al cities, where it is often planted in parks and gardens. In the rainy season it offers shade and, in the dry season, abundant flowers are present on the defoliated trees.

Description

The tree is short length, with irregular, stratified ramification and only few thick branches. The bark can be gray to brown, in varying darkness and may be vertically fissured.

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

compound Compound may refer to: Architecture and built environments * Compound (enclosure), a cluster of buildings having a shared purpose, usually inside a fence or wall ** Compound (fortification), a version of the above fortified with defensive struct ...

digitate 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 o ...

and

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 ...

. Each leaf has five leaflets of variable size, the middle one being the largest. Flowering occurs mainly in January and February, and is generally associated with dry periods; although flowering has also been observed in August, September, April and May. Flowers are large, in various tones of pink to purple, and appear while the tree has none, or very few, leaves.

Pollination Pollination is the transfer of pollen from an anther of a plant to the stigma of a plant, later enabling fertilisation and the production of seeds, most often by an animal or by wind. Pollinating agents can be animals such as insects, birds ...

occurs probably by insects, although the flowers are visited by many birds such as

tanager The tanagers (singular ) comprise the bird family Thraupidae, in the order Passeriformes. The family has a Neotropical distribution and is the second-largest family of birds. It represents about 4% of all avian species and 12% of the Neotropica ...

hummingbird Hummingbirds are birds native to the Americas and comprise the biological family Trochilidae. With about 361 species and 113 genera, they occur from Alaska to Tierra del Fuego, but the vast majority of the species are found in the tropics aro ...

s and

orioles Oriole or Orioles may refer to: Animals * Old World oriole, colorful passerine birds in the family Oriolidae * New World oriole, a group of birds in the family Icteridae Music * The Orioles, an R&B and doo-wop group of the late 1940s and earl ...

. The long and slender fruit capsules can measure up to and appear from February through April. After the drying fruit dehisces, the anemochorous,

hyaline A hyaline substance is one with a glassy appearance. The word is derived from el, ὑάλινος, translit=hyálinos, lit=transparent, and el, ὕαλος, translit=hýalos, lit=crystal, glass, label=none. Histopathology Hyaline cartilage is ...

membrane A membrane is a selective barrier; it allows some things to pass through but stops others. Such things may be molecules, ions, or other small particles. Membranes can be generally classified into synthetic membranes and biological membranes. B ...

- winged seeds are released. There are an average of 45,000 seeds per kg with up to 13% water content.

Germination Germination is the process by which an organism grows from a seed or spore. The term is applied to the sprouting of a seedling from a seed of an angiosperm or gymnosperm, the growth of a sporeling from a spore, such as the spores of fungi, fer ...

of seeds is extremely easy and efficient, reaching almost 100%. It is a fairly fast growing tree.

Medicinal uses

Preparations of the bark of the tree are consumed to eliminate intestinal parasites, malaria and uterine cancer. A decoction of the bark is recommended for anemia and constipation. A decoction of the flowers, leaves and roots has been used to reduce fevers and pain, cause sweating, to treat tonsil inflammation and various other disorders. Among the various active phytochemicals in the tree is

lapachol Lapachol is a natural phenolic compound isolated from the bark of the lapacho tree.Record, Samuel J.. "Lapachol" pages 17-19. In: ''Tropical Woods'' (1925). This tree is known botanically as ''Handroanthus impetiginosus'', but was formerly known ...

, a natural

organic compound In chemistry, organic compounds are generally any chemical compounds that contain carbon-hydrogen or carbon-carbon bonds. Due to carbon's ability to catenate (form chains with other carbon atoms), millions of organic compounds are known. The ...

isolated from various other ''Tabebuia'' species. Chemically, it is a derivative of

naphthoquinone Naphthoquinones constitute a class of organic compounds structurally related to naphthalene. Two isomers are common for the parent naphthoquinones: * 1,2-Naphthoquinone * 1,4-Naphthoquinone Natural products * Alkannin * Hexahydroxy-1,4-napht ...

, related to

vitamin K Vitamin K refers to structurally similar, fat-soluble vitamers found in foods and marketed as dietary supplements. The human body requires vitamin K for post-synthesis modification of certain proteins that are required for blood coagulation ...

. Once studied as a possible treatment for some types of cancer,

's potential is now considered low due to its toxic side effects. Lapachol also has antimalarial and antitrypanosomal effects.Gupta, M. 1995. 270 Plantas Medicinales Iberoamericanas. Santa Fe de Bogota. Convenio Andres Bello.

References

External links

INBio−Atta: ''Tabebuia rosea''

RNGR.net: Tropical Tree Seed Manual − ''Tabebuia rosea''
{{Taxonbar, from=Q3695281 rosea Trees of Mexico Trees of Belize Trees of Costa Rica Trees of El Salvador Trees of Guatemala Trees of Honduras Trees of Nicaragua Trees of Panama Trees of Venezuela Trees of Colombia Trees of Ecuador Garden plants of North America Garden plants of South America Least concern plants Least concern flora of North America Least concern biota of Mexico Least concern biota of South America National symbols of El Salvador Taxa named by Augustin Pyramus de Candolle