Stunning photographs of each species, brief details on the plant, its uses and how to grow it from seed. A superb work, with the minor irritation that the translation from Portuguese is not of the best. Most species of Handroanthus, almost certainly including this one, produce a very hard, heavy and durable timber known as Ipe. The general description of Ipe wood is as follows:- The heartwood is yellowish brown to dark olive brown, sometimes with thin veins; it is clearly demarcated from the 3 - 9cm wide band of sapwood. The texture is usually fine, though it is medium in some species; the grain is interlocked; there are canals in the wood containing a greenish-yellow deposit of lapachol.
|Published (Last):||16 November 2012|
|PDF File Size:||16.33 Mb|
|ePub File Size:||3.71 Mb|
|Price:||Free* [*Free Regsitration Required]|
Fruit an elongate dehiscent capsule. Seeds thin with 2 wings. Wings thin and sharply demarcated from seed body. Handroanthus is distinguished from Tabebuia by several morphological characters. The wood is among the hardest and heaviest known.
The heartwood is distinct from the sapwood and contains large quantities of lapachol. Handroanthus has the same lepidote scales as Tabebuia, but also has various types of hair. The calyx is 5-dentate and campanulate to cupular.
The corolla is yellow, except in those four species where it is magenta with a yellow throat. Tabebuia has only two yellow-flowered species, Tabebuia aurea and Tabebuia nodosa. The fruit of Handroanthus is rarely glabrous like that of Tabebuia.
It usually ranges from sparsely pubescent to densely tomentose. Handroanthus is widely used as ornamental tree in the tropics in landscaping gardens, public squares, and boulevards due to its impressive and colorful flowering.
Many flowers appear on still leafless stems at the end of the dry season , making the floral display more conspicuous. Handroanthus impetiginosus , Handroanthus chrysotrichus , and Handroanthus ochraceus are well-known throughout the tropics.
The wood is durable outdoors, where it is usually used for furniture and decking. It is increasingly popular as a decking material due to its insect resistance and durability. Handroanthus and the unrelated Guaiacum Zygophyllaceae produce the hardest, heaviest, and most durable wood of the American tropics. The wood of other species is sometimes fraudulently sold as Handroanthus. The town had pledged to use domestic black locust , but it was not available in time. Medical claims for Handroanthus are numerous, but so far, have always originated from unreliable sources.
For this reason, the extensive literature on this subject is not reviewed here. The bark of several species of Handroanthus is sold in South American markets. Similar-looking bark is often fraudulently passed off as Handroanthus. It is used in various ways to relieve certain symptoms of certain cancers. The bark is dried, shredded, and then boiled to make a bitter or sour-tasting brownish-colored tea.
A dehydrated tea is also available in pill form. Taheebo has been used for years in Central America and South America to Therapy treat a number of diseases including Eczema , Candidiasis , Fungal infections and even cancer. Ecology[ edit ] The nectar of Handroanthus flowers is an important food source for several species of bees and hummingbirds. The distinction between national flower and national tree is sometimes not entirely clear.
Gentry gives the following information without making that distinction.
Ipê-amarelo - Handroanthus chrysotrichus