|Tabebuia rosea subsp. var.||Roble de Sabana|
Tabebuia rosea is a neotropical tree that grows up to 30 m in 0 and can reach a diameter at breast height of up to 100 cm ft 0. The name Roble de Sabana is widely used in Costa Rica meaning "savannah oak" in Spanish, probably because it often remains in heavily deforested areas, where people prize its intense flowering periods and because of the resemblance of its wood with the oak wood The name Maquilishuat is almost entirely used by the inhabitants of El Salvador to designate the Tabeuia rosea; it's also their national tree.
This species is distributed from southern Mexico, to Venezuela and Ecuador. It has been found growing from sealevel to 1200 m ft 0, 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 in 0 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%.
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.
|Standard Cyclopedia of Horticulture|
Tabebuia rosea, DC. (Tecoma rosea, Bertol.). Evergreen tree: lvs. digitate; lfts. 5, rarely 3, long-stalked, ovate to oblong, acuminate, entire: fls. in many-fld. terminal panicles; corolla funnelform-campanulate, with short tube and large spreading lobes, rosy pink; calyx campanulate, obscurely 2-lobed, almost truncate. Guatemala. CH
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- Standard Cyclopedia of Horticulture, by L. H. Bailey, MacMillan Co., 1963
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