1. Tabebuia Chrysotrica (tah-bee-BOO-ee.uh.krye-so-TRIKE-uh)
Tabebuia chrysotricha, commonly known as the golden trumpet tree, is an evergreen tree from Brasil. It is very similar to and often confused with Tabebuia ochracea. In Portuguese it is called "ipê amarelo" and is considered the national tree of Brasil.
Species characteristics:
Form - Briefly deciduous, sometimes evergreen. Small to medium sized tree growing to 25 - 30'. Irregular in shape when young, becoming rounded and spreading with age.
Trunk - Smooth, thin, light gray bark with narrow linear markings.
Foliage - Palmately compound leaves have five leaflets, 2 - 4" long and 1/2" wide, with pubescence on the undersides. Young twigs and flower buds are also covered with cream-colored fuzz.
Flowers/fruit - Showy, deep yellow 3 - 4" trumpet shaped flowers are borne on graceful, wide-spreading branches in early spring (March-April) during brief deciduous period. Sometimes blooms at other times, when leaves are present. There is a red stripe on the throat of the flowers which develop in increasingly dense clusters with maturity. Fruits are borne in skinny pods
8 - 9 1/2" long and less than 1/2" wide. Small 1/4" bean-like seeds disperse from the opened pods in late summer, followed by the twisted empty pods which drop by early fall.
No significant pest problems are known at this time.
Site suitability:
Sunset zones - 15, 16, and 20- 24. Hardy to 25°.
Clearances - Suitable for 3' minimum parkways, medians or 4' cutouts. Suitable under utility lines.
Good for street sides, medians, parks and lawns.
Culture considerations:
Grows best in full sun, prefers well-drained soils, best growth with regular watering and fertilizing. Drought tolerant when established.
Overview:
This species is distributed from southern México, to Venezuela and Ecuador. It has been found growing from sealevel to 1,200 m (3,937 ft), in temperatures ranging from 20 °C to 30 °C on average, with annual rainfall above 500 mm, and on soils with very variable pH.
The tree crown is wide, 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 are compound, digitate and deciduous. 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 occurs probably by insects, although the flowers are visited by many birds such as tanagers, hummingbirds and orioles. The long and slender fruit capsules can measure up to 35 cm (14 in) and appear from February through April. After the drying fruit dehisces, the anemochorous, hyaline-membrane-winged seeds are released. There are an average of 45,000 seeds per kg with up to 13% water content. Germination of seeds is extremely easy and efficient, reaching almost 100%. It is a fairly fast growing tree.
This tree is often seen in Neotropical cities, where it is often planted in parks and gardens. In the rainy season it offers great shade and, in the dry season, abundant flowers are present on the defoliated trees.
Medicinal uses :
Preparations of the cortex of the tree are consumed to eliminate intestinal parasites, malaria and uterine cancer. A decoction of the cortex 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, a natural organic compound isolated from various other Tabebuia species. Chemically, it is a derivative of naphthoquinone, related to vitamin K. Once studied as a possible treatment for some types of cancer, lapachol's potential is now considered low due to its toxic side effects. Lapachol also has antimalarial and antipanasomal effects.
2. Tabebuia Rosea
Tabebuia rosea, also called pink poui, and rosy trumpet tree is a neotropical tree that grows up to 30 m (1,181 in) and can reach a diameter at breast height of up to 100 cm (3 ft). The name Roble de Sabana, meaning "savannah oak", is widely used in Costa Rica in Spanish, probably because it often remains in heavily deforested areas, where people appreciate its intense flowering periods and because of the resemblance of its wood to that of oak trees.[3] It is the national tree of El Salvador.
Overview
This species is distributed from southern México, to Venezuela and Ecuador. It has been found growing from sealevel to 1,200 m (3,937 ft), in temperatures ranging from 20 °C to 30 °C on average, with annual rainfall above 500 mm, and on soils with very variable pH.
The tree crown is wide, 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 are compound, digitate and deciduous. 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 occurs probably by insects, although the flowers are visited by many birds such as tanagers, hummingbirds and orioles. The long and slender fruit capsules can measure up to 35 cm (14 in) and appear from February through April. After the drying fruit dehisces, the anemochorous, hyaline-membrane-winged seeds are released. There are an average of 45,000 seeds per kg with up to 13% water content. Germination of seeds is extremely easy and efficient, reaching almost 100%. It is a fairly fast growing tree[citation needed].
This tree is often seen in Neotropical cities, where it is often planted in parks and gardens. In the rainy season it offers great shade[original research?] and, in the dry season, abundant flowers are present on the defoliated trees.
Medicinal uses
Preparations of the cortex of the tree are consumed to eliminate intestinal parasites, malaria and uterine cancer. A decoction of the cortex 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, a natural organic compound isolated from various other Tabebuia species. Chemically, it is a derivative of naphthoquinone, related to vitamin K.
Once studied as a possible treatment for some types of cancer, lapachol's potential is now considered low due to its toxic side effects. Lapachol also has antimalarial and antipanasomal effects.
3. Tabebuia Aurea
Tabebuia aurea is a species of Tabebuia native to South America in Suriname, Brazil, eastern Bolivia, Peru, Paraguay, and northern Argentina. The common English name Caribbean trumpet tree is misleading, as it is not native to the Caribbean. It is also known as the silver trumpet tree, and tree of gold.
Description
It is a small dry season-deciduous tree growing to 8 m tall. The leaves are palmately compound, with five or seven leaflets, each leaflet 6–18 cm long, green with silvery scales both above and below.
The flowers are bright yellow, up to 6.5 cm diameter, produced several together in a loose panicle. The fruit is a slender 10 cm long capsule.
Cultivation
It is a popular ornamental tree in subtropical and tropical regions, grown for its spectacular flower display on leafless shoots at the end of the dry season.
Ecology
This species presence in riparian areas of the Caatinga of northeastern Brazil is a crucial resource for Spix's macaw (Cyanopsitta spixii), which is extinct in the wild with fewer than 100 birds remaining in captivity. Any future reintroduction would have to provide sufficient T. aurea for nesting and other purposes - while the tree is not considered threatened on a global scale, locally it has declined due to unsustainable use for timber.
Cultivation Details
This tree is found in a wide variety of habitats - forms from the north of its range succeed in marshy or seasonally inundated soils whilst forms from the south grow in well-drained, seasonally very dry soils. Growing wild in harsh conditions, it may develop 'rubbery' growth and become unstable in overly fertile soil.Freshly planted young trees are slow to establish and grow away.
4. Tabebuia Serratifolia
- Tabebuia serratifolia, commonly known as Yellow Lapacho, Pau D'arco , Yellow Poui, Yellow Ipe, Pau D'arco Amarelo, or ipê-amarelo.
It is a tree native to forests throughout Central and South America. This plant grows in the Cerrado vegetation of Brazil, reaching up to French Guiana, Bolivia, Paraguay and Northern Argentina.
It is one of the largest and strongest of tropical forest trees, growing up to 150 feet (46 m) tall while the base can be 4–7 feet (1.2–2.1 m) in diameter.
Uses
It is a commercially farmed hardwood notable for its extreme hardness and resistance to fire and pests. It is sometimes traded as an "ironwood", or just as "ipê" (the entire genus Tabebuia), or as lapacho (properly Tabebuia serratifolia)
Medicinal
The bark of Tabebuia serratifolia contains more than 20 active compounds including lapachol, quercetin and other flavonoids. Its inner bark is used as an herbal tea, for treatment of fungal infections.
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