| | CITESwoodID: descriptions, illustrations, identification and information retrieval |
Nomenclature. Family: FABACEAE-FABOIDEAE. Synonym(s): syn.: Dalbergia variabilis var. bahiensis. Further trade and local names: violet wood (trade); jacarandá violeta, miolo de negro, pau rosa, violeta (BR); bois de violette, palissandre violette (FR); Königsholz (DE). Code according to DIN EN 13556: DLCR.
CITES(EU) status of protection. Listed in Annex II(B).
Geographic distribution. Tropical South America. Brazil: Bahia, Ceará, Pernambuco, Piauí.
Growth rings, colour, grain, etc. Growth ring boundaries mostly distinct. Heartwood basically brown, purple; with streaks (conspicuously blackish violet). Sapwood distinct from heartwood colour. Odour distinct (aromatic, somewhat sweet when freshly cut). Wood heavy and hard (0.90–1.0–1.2 g/cm3). Interlocked grain present.
Hardwood vs softwood. Vessels (pores) present (= hardwood).
Vessels (pores). Wood semi-ring-porous to diffuse-porous; earlywood pore ring uniseriate (frequently discontinuous). Vessels (pores) arranged in no specific pattern; in multiples; commonly in short (2–3 vessels) radial rows and in radial rows of 4 or more. Vessels small to medium (20–70–150 µm); few to numerous (10–32–68). Tyloses absent. Other deposits in heartwood vessels (pores) present.
Axial parenchyma. Axial parenchyma present; banded (of irregular ocurrence), or not banded. Parenchyma bands exclusively marginal (or seemingly marginal); narrow. Other macroscopically visible types of axial parenchyma: vasicentric, aliform lozenge type and confluent (rather insdistinct, difficult to observe even with a hand lens).
Rays. Rays narrow. Large rays commonly less than 1 mm high.
Storied structure. Storied structure present. Tiers regular (horizontal or slightly inclined); 6–8 per axial millimetre.
Physical and chemical tests. Heartwood not fluorescent. Water extract not fluorescent; colour shade of water extract colourless to brown. Heartwood extractives not leachable by water. Ethanol extract fluorescent (weakly pink); colour shade of ethanol extract purple. Splinter burns to full ash; colour of ash white to grey.
Additional information. • Transverse section + wood surface. Transverse section ca. 10x. Radial and tangential 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: 4th April 2023. www.delta-intkey.com’.
