CITESwoodID: descriptions, illustrations, identification and information retrieval


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

Dalbergia retusa Hemsl., D. granadillo Pittier (Cocobolo) - CITES II

Nomenclature. Family: FABACEAE-FABOIDEAE. Other trade relevant species: Both species are traded as "cocobolo", they cannot be distinguished from each other as regards colour, weight and macro structure. Synonym(s): Dalbergia retusa: D. hypoleuca Pittier; D. lineata Pittier; D. pacifica Standley & Steyermark. Dalbergia granadillo: Amerimnon granadillo Standl. Further trade and local names: granadillo (GT, HN, MX, NI); ñambar, ñambar legítimo (CR, NI); tampizarán (MX); palo negro (HN); palisandro (CO); Nicaragua rosewood (GB);. Code according to DIN EN 13556: DLRT. Internal code: COC.

CITES(EU) status of protection. Listed in Annex II(B).

Geographic distribution. Mexico and Central America. Dalbergia retusa: N-Columbia to SW-Guatemala Pacific watershed of México (Tabasco to Nayarit).

Growth rings, colour, grain, etc. Growth ring boundaries indistinct or absent. Heartwood basically brown to yellow (yellowish to orange brown when fresh, darkening to deep reddish brown); with streaks (dark brown to purplish black). Sapwood distinct from heartwood colour. Odour distinct (aromatic sweetish when freshly cut). Wood heavy and hard (0.89 –1.0 –1.35 g/cm3). Surface oily. Interlocked grain weakly present, or absent.

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. Vessels medium to large (80–320 µm); very few (3–6). Tyloses absent. Other deposits in heartwood vessels (pores) present, or absent (in case sapwood is mistaken for heartwood).

Axial parenchyma. Axial parenchyma present; not banded. Other macroscopically visible types of axial parenchyma: diffuse-in-aggregates (mostly diffuse-in-aggregates (zonate) as short fine lines between rays).

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

Storied structure. Storied structure present. Tiers regular (horizontal or slightly inclined); 5–6 per axial millimetre.

Physical and chemical tests. Heartwood not fluorescent. Water extract fluorescent (pale green); yellow. Heartwood extractives not leachable by water. Ethanol extract fluorescent (light orange); colourless to brown (dark copper brown). Froth test negative. Splinter burns to full ash; colour of ash white to grey. As regards these physical-chemical properties, Dalbergia granadillo yields results identical to those obtained for D. retusa; even based on this set of properties, the two species cannot be differentiated.

Additional information. • coc.jpg. For comparison with Dalbergia granadillo see the following image. • tam.jpg. Transverse section ca. 10x. Tangential surface (variegated), natural size. Dalbergia granadillo (Cocobolo, tampinzarán).

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.’.