CITESwoodID: descriptions, illustrations, identification and information retrieval

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H. G. Richter, K. Gembruch, G. Koch

Cordia glabrata (Mart.) A.DC. (Louro preto, Piquana negra)

Nomenclature. Family: BORAGINACEAE. Synonym(s): Gerascanthus glabrata, Lithocardium glabratum. Further trade and local names: japunaqui (BO); claraíba, claraibeira, frei-jorge, peteribi, uruá (BR). Code according to DIN EN 13556: none. Internal code: PIQ.

CITES(EU) status of protection. Not protected.

Geographic distribution. Tropical South America, southern Brazil, and temperate South America. Central Brazil (Mato Grosso) and neighbouring Bolivia.

Growth rings, colour, grain, etc. Growth ring boundaries distinct (demarcated by marginal parenchyma (often discontinuous) bands). Heartwood basically brown; with streaks (nearly black). Sapwood distinct from heartwood colour. Wood heavy and hard (0,8 g/cm3). Interlocked grain present.

Hardwood vs softwood. Vessels (pores) present (= hardwood).

Vessels (pores). Wood diffuse-porous. Vessels (pores) arranged in no specific pattern; in multiples; commonly in short (2–3 vessels) radial rows and in clusters. Vessels small to medium (60–110–140 µm); few (7). Tyloses present, or absent (in case sapwood is mistaken for heartwood). Other deposits in heartwood vessels (pores) present (yellowish brown), or absent (in case sapwood is mistaken for heartwood).

Axial parenchyma. Axial parenchyma present; banded. Parenchyma bands exclusively marginal (or seemingly marginal); narrow. Other macroscopically visible types of axial parenchyma: diffuse-in-aggregates, vasicentric, and confluent.

Rays. Rays narrow. Large rays commonly less than 1 mm high.

Storied structure. Storied structure absent.

Physical and chemical tests. Heartwood not fluorescent. Water extract not fluorescent; colourless to brown. Heartwood extractives not leachable by water. Ethanol extract fluorescent (yellowish green); colourless to brown. Froth test weak positive. Splinter burns to partial ash; colour of ash white to grey.

Additional information. Informationsdienst Holz Merkblatt Nr. 55. • piq.jpg. Cordia glabrata (Louro preto, Piquana negra). Transverse section ca. 10x. Radial surface, natural size.


The interactive key allows access to the character list, illustrations, full and partial descriptions, diagnostic descriptions, differences and similarities between taxa, lists of taxa exhibiting specified attributes, summaries of attributes within groups of taxa, and geographical distribution.

Cite this publication as: ‘Richter, H.G., Gembruch, K., and Koch, G. 2014 onwards. CITESwoodID: descriptions, illustrations, identification, and information retrieval. In English, French, German, and Spanish. Version: 16th May 2014. delta-intkey.com’.

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