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SENNA (Senna siamea)
Nom commercial
Senna
Nom scientifique (avec auteur)
Senna siamea (Lam.) H.S. Irwin & Barneby
Famille
LEGUMINOSAE
Noms communs (pays)
Johar (Sumatra); Khi lek ban (Thailand); Johor (Malaysia); Khi lek (Laos); Angkanh (Cambodia); Thailand shower (Philippines); Juah (Malaysia); Johar (Indonesia); Thai copper pod; Kassod tree; Phak chili (Thailand); Petai belalang (Malaysia)
Synonymes du nom scientifique (avec auteurs)
Sciacassia siamea (Lam.) Britton; Chamaefistula gigantea G. Don; Cassia siamea var. puberula Kurz; Cassia siamea Lam.; Cassia gigantea Bertero ex DC.; Cassia florida Vahl; Cassia arborea Macfad.
DESCRIPTION DE L'ARBRE
Description botanique
It is described as a small to medium sized tree, up to 20 m tall, the bole is usually short, up to 50 cm in diameter.
Habitat naturel
Senna siamea is reported along roadsides and riverbanks. It occurs in different types of lowland forests.
Existence de plantations?
It is planted throughout the tropics, in Vietnam is used for fuel-wood plantations.
IDENTIFICATION DU BOIS
Description anatomique du bois
Wood diffuse porous. Tangential diameter of vessel lumina 200 micras or more (large). Colored deposits in heartwood vessels. Vestured pits. Vessels per mm2 5 to 20. Vessels per mm2 less than 6 (rare). Simple perforation plates. Vessel-ray pits similar to interve Axial parenchyma confluent. Prismatic crystals in chambered axial parenchyma cells and/or in fibers. Occasionally two cells per parenchyma strand. 3 to 4 cells per parenchyma strand. Occasionally 5 to 8 cells per parenchyma strand. Axial parenchyma bands more 4 to 10 rays per mm (medium). Homogeneous rays and/or sub-homogeneous rays (all ray cells procumbent). Occasionally septate fibers present. Fibers very thick walled. Fibers with simple to minutely bordered pits.
Disponibilité
Statut CITES
Unrestricted
DESCRIPTION GÉNÉRALE DU BOIS
Odeur
Its odor and taste is not distinct.
Teinte
The sapwood is white, distinct. The heartwood is reddish-brown, dark brown to almost black.
Index de Teinte (1 = Noir, 7 = Jaune clair)
1
Grain
This species is typically reported to have wavy or interlocked grain.
Texture
This species is reported to have a fine to medium texture.
Luster
It is reported to be lustrous.
Durabilité naturelle
The heartwood is reported to be resistant to termites.
Index de durabilité naturelle (1 = Très élevée, 7 = Très faible)
2
Teneur en silice
Silica Content: Silica content is negligible. Silica Value: 0
Résistance à l'imprégnation
S. siamea wood is permeable to preservative substances.
PROPRIÉTÉS PHYSIQUES DU BOIS
Densité basale ou gravité spécifique (poids anhydre/vol. saturé) (g/cm³)
0.63
Densité sèche à l'air (poids et volume à 12%TH) (g/cm³)
0.71
Retrait tangentiel total (saturé à 0%TH) (%)
9.4
Retrait radial total (saturé à 0%TH) (%)
5.6
Défauts dus au séchage
Ease of Drying: Drying is rather slow and sometimes difficult to perform. Drying Defects: Risks of distortions.
Ratio de stabilité dimensionnelle (% retrait tangentiel total/% retrait radial total)
1.7
PROPRIÉTÉS CHIMIQUES DU BOIS
PROPRIÉTÉS MÉCANIQUES DU BOIS
Résistance à la flexion (module de rupture_MOR) 12%TH (kgf/cm²)
1106
Rigidité (module d'élasticité_ MOE) 12%TH (kgf/cm²)
121946
Résistance à la compression parallèle à la fibre 12%TH (kgf/cm²)
550
Résistance au cisaillement (radial) 12%TH (kgf/cm²)
107
OUVRABILITÉ
Usinage
This species is difficult to machine.
Rabotage
The wood has a tendency to pick up in planing.
Tournage
30
Finissage
It takes a high finish.
Polissage
Polishing of this wood is easy.
UTILISATIONS
UTILISATIONS FINALES (RÉSUMÉ)
HOUSING GENERAL, beams, boards, panelling, FURNITURE AND CABINETS, luxury furniture, PLYWOOD AND VENEER, faces, Decorative veneer, TURNING, TOOLS, tool handles, agricultural tools, CONTAINERS, truck bodies, truck flooring, NAVAL CONSTRUCTION, OTHER AND MUSICAL INSTRUMENTS, handicrafts
MEUBLES ET M. DE RANGEMENT
- 10 - Silica in Timbers
Pouters
- 11 - Prospect: The wood database
Planches
- 13 - Dry kiln schedules for commercial woods. Temperate and tropical. Section III. Latin American (Mexico, Central, and South America) Woods–Conventional Temperatures
Panneaux
- 18 - W3TROPICOS Missouri Botanical Garden
MEUBLES ET M. DE RANGEMENT
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Meubles luxe
- 22 - Dry kiln schedules for commercial woods. Temperate and tropical. Section IV-Asian and Oceanian Woods
PANNEAUX ET PLACAGE
- 25 - Directory of Timber Trade Malaysia
Faces (de placage)
- 26 - Annual Review and Assessment of the World Timber Situation 1998-ITTO
Placage tranché
- 28 - Ministry of Agriculture, Fisheries & Forest of Fiji
Tournage
- 30 - Embassy of Honduras in Japan
OUTILS
- 42 - Utilización Industrial de Nuevas Especies Forestales en el Perú.
Outils_manches
- 43 - Maderas de Bolivia (Características y Usos de 55 Maderas Tropicales)
Outils_agric
- 44 - Atlas of Peruvian Woods
Carros_camion
- 53 - Timbers of the New World
Wagons
- 54 - Bulletin of the Government Forest Experiment Station N.157: Identification of Tropical Woods
CONSTRUCTION NAVALE
- 55 - Tropical Timber Atlas of Latin America
Artisanat
- 66 - Maderas latinoamericanas. VII. Caracteristicas anatomicas. propiedades fisicomecanicas, de secado, y tratabilidad de la madera juvenil de Cordia alliodora (Ruiz & Pav. Oken.)
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