Darlingia ferruginea J.F.Bailey
Darlingia ferruginea, commonly known as the brown silky oak, is a rainforest tree of the family Proteaceae from Northern Queensland.
Taxonomy and naming
Queensland botanist John Frederick Bailey described Darlingia ferruginea in 1899. The species name is the Latin adjective ferruginea "rusty", and refers to the rust-coloured fur on the stems and leaves.
Molecular analysis indicates Darlingia ferruginea and its relative D. darlingiana join Floydia prealta as members of the subtribe Floydiinae within the subfamily Grevilleoideae in the family Proteaceae.
Common names include brown silky oak, rose silky oak, and rusty silky oak. Its everyday name in the local Dyirbal language was gurray, though a more general word gurruŋun "oak tree" (also applied to Cardwellia sublimis and Helicia australasica) was used in the taboo [Dyalŋuy] vocabulary.
Darlingia ferruginea grows as a tall tree in its native rainforest habitat, forming part of the canopy and reaching 30 m (100 ft) in height, though likely to only grow a third this size in cultivation. The trunk is not buttressed. The initial leaves are entire but juvenile leaves are lobed, reaching 70 cm (28 in) long. The leaf veins and undersurface, and stems are covered with fine rust-coloured hairs. Adult leaves are entire and measure 20-46 long by 5–21 cm wide. Flowering is in winter and early spring, the inflorescences are 14–22 cm long.
Distribution and habitat
Uses and cultivation
Darlingia ferruginea has potential as a specimen tree in parks, and has showy flowers and foliage. It is readily propagated from seed or cuttings.
- "Darlingia ferruginea J.F.Bailey". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government.
- Wrigley, John; Fagg, Murray (1991). Banksias, Waratahs and Grevilleas. Sydney: Angus & Robertson. p. 150. ISBN 0-207-17277-3.
- Weston, Peter H.; Barker, Nigel P. (2006). "A new suprageneric classification of the Proteaceae, with an annotated checklist of genera" (PDF). Telopea. 11 (3): 314–344. Archived from the original (PDF) on 2015-11-16.
- Hyland, B. P. M.; Whiffin, T.; Zich, F. A.; et al. (Dec 2010). "Factsheet – Darlingia ferruginea". Australian Tropical Rainforest Plants. Edition 6.1, online version [RFK 6.1]. Cairns, Australia: Commonwealth Scientific and Industrial Research Organisation (CSIRO), through its Division of Plant Industry; the Centre for Australian National Biodiversity Research; the Australian Tropical Herbarium, James Cook University. Retrieved 2 June 2014.
- Dixon, Robert Malcolm Ward (1990). Anthropological Linguistics. 32 (1/2): 1–56. JSTOR 30028138. Missing or empty
- "Darlingia ferruginea". Flora of Australia Online. Department of the Environment and Heritage, Australian Government.