logwood

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Related to Haematoxylum campechianum: logwood, logwood tree

logwood,

small, thorny tree (Haematoxylon campechianum) of the family Leguminosae (pulsepulse,
in botany, common name for members of the Fabaceae (Leguminosae), a large plant family, called also the pea, or legume, family. Numbering about 650 genera and 17,000 species, the family is third largest, after the asters and the orchids.
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 family) native to tropical America and introduced into other tropical regions. The brown-red heartwood is the source of the dye haematoxylin and was exported to Europe as a major purple textile dye from the 16th cent. until the development of synthetic aniline dyes. It is still used more than are most natural dyes—as a histological stain, for ink, and as a special-purpose dye. Local names for the wood include campeachy wood and blackwood. The name logwood is sometimes applied to other similar woods. Logwood is classified in the division MagnoliophytaMagnoliophyta
, division of the plant kingdom consisting of those organisms commonly called the flowering plants, or angiosperms. The angiosperms have leaves, stems, and roots, and vascular, or conducting, tissue (xylem and phloem).
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, class Magnoliopsida, order Rosales, family Leguminosae.

Logwood

 

(Haematoxylon campechianum), a small tree of the family Caesalpiniaceae, measuring approximately 12 m tall and 0.5 m in diameter. The leaves are pinnate, and the flowers are small and yellow. Native to tropical America, logwood is cultivated in the tropics. The heartwood is initially bright red; it subsequently turns blue, then violet-black. Logwood, which contains hematoxylin and tannins, is used for making dye. Be-cause of its attractive color and texture, the wood is valued inthe manufacture of furniture and parquetry.

logwood

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(botany)
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