Australian Tropical Rainforest Plants - Online edition
Cryptocarya onoprienkoana B.Hyland
Hyland, B.P.M. (1989) Australian Systematic Botany 2: 201. Type: B. Gray 3286: Reserve 353, Parish of Barron 11.xi.1983 (QRS, holotypus).
Walnut, Rose; Southern Maple; Ash, Pigeonberry; Mape, Rose; Maple, Southern; Pigeonberry Ash; Rose Maple; Rose Walnut
Blaze odour resembles that of a freshly peeled peach (Prunus persica) or mango (Mangifera indica). Larger trees prominently buttressed. Bark often pale.
Twigs slightly fluted, densely clothed in tortuous, rusty brown, erect hairs which persist even on old twigs. Leaf blades about 8-15.5 x 2.5-7 cm, glaucous or almost white on the underside, when young the midrib (on the underside) clothed in tortuous, rusty brown, erect hairs and the body of the leaf blade clothed in straight, white, appressed hairs, older leaves similarly clothed but rather sparse; domatia are tufts of hair, sometimes present in the axils of the primary veins. Midrib depressed on the upper surface. Petioles flat or channelled on the upper surface. Oil dots visible with a lens.
Fruits ellipsoid, about 15-22 x 11-15 mm. Cotyledons white or cream.
One or two linear cataphylls produced before the first pair of true leaves. First pair of true leaves ovate, about 50-70 x 22-40 mm, glaucous on the underside. At the tenth leaf stage: leaf blade hairy on the upper surface at least along the midrib and main lateral veins, undersurface glaucous; oil dots numerous, easily visible with a lens. Terminal bud, stem and petiole densely covered in pale brown hairs. Seed germination time 27 to 107 days.
Produces a decorative cabinet timber and general purpose timber. Wood specific gravity 0.72-0.77. Hyland (1989).