Common Name(s): Rough-barked apple
Scientific Name: Angophora floribunda
Distribution: Eastern Australia
Tree Size: 65-100 ft (20-30 m) tall,
2-3 ft (.6-1 m) trunk diameter
Average Dried Weight: 54.00 lbs/ft3 (865 kg/m3)
Specific Gravity (Basic, 12% MC): .73, .87
Janka Hardness: 1,930 lbf (8,600 N)
Modulus of Rupture: 15,950 lbf/in2 (110.0 MPa)
Elastic Modulus: 1,595,000 lbf/in2 (11.00 GPa)
Crushing Strength: No data available
Shrinkage: Radial: 6.1%, Tangential: 9.6%,
Volumetric: 16.0%, T/R Ratio: 1.6
Color/Appearance: Heartwood is a light reddish brown. Contrasting sapwood is pale yellow. Gum veins are common, and can appear as defects in the facegrain of the wood. Quartersawn pieces with interlocking grain display a ribbon-stripe figure somewhat reminiscent of satinwood.
Grain/Texture: Grain is straight to interlocked. With a coarse texture and good natural luster.
Rot Resistance: Rated as moderately durable to non-durable; poor insect resistance.
Workability: Tends to be somewhat difficult to work on account of its frequent grain defects. Glues and finishes well.
Odor: No characteristic odor.
Allergies/Toxicity: Besides the standard health risks associated with any type of wood dust, no further health reactions have been associated with rough-barked apple—possibly due to its relative obscurity. Many species in the closely related Eucalyptus genus can cause skin irritation, as well as a number of other health reactions. See the articles Wood Allergies and Toxicity and Wood Dust Safety for more information.
Pricing/Availability: Not harvested or available commercially for structural lumber. Limited quantities can be found regionally—usually as firewood or fencing material. Expect prices to be moderate.
Sustainability: This wood species is not listed in the CITES Appendices, but is reported by the IUCN as being near threatened. Technically it doesn’t meet the Red List criteria of a vulnerable or endangered species, but is close to qualifying and/or may qualify in the near future.
Common Uses: Fences, firewood, and small, specialty wood items.
Comments: None.
Images: Drag the slider up/down to toggle between raw and finished wood. Note the small gum inclusion in the upper left corner of the sample—a common defect in this species.
Identification: See the article on Hardwood Anatomy for definitions of endgrain features.
Porosity: diffuse porous
Arrangement: solitary and radial multiples
Vessels: large, few; dark brown colored deposits occasionally present
Parenchyma: vasicentric, lozenge, confluent, and banded (marginal)
Rays: medium to wide; normal spacing
Lookalikes/Substitutes: Angophora species can sometimes be confused with Eucalyptus—the two genera are actually botanically very closely related. However, in contrast to Eucalyptus (which has pores that are exclusively solitary), rough-barked apples’ pores very frequently occur in radial multiples of two to five.
Notes: Angophora species have intermittent gum inclusions—a conspicuous defect on the face grain—which can help to distinguish it from other similar species.
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