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Species profile—Bosistoa transversa (three-leaved bosistoa)


Plantae (plants) → Equisetopsida (land plants) → RutaceaeBosistoa transversa (three-leaved bosistoa)

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Species details

Plantae (plants)
Equisetopsida (land plants)
Scientific name
Bosistoa transversa J.F.Bailey & C.T.White
Common name
three-leaved bosistoa
WildNet taxon ID
Alternate name(s)
three leaved bosistoa
heart-leaved bosistoa
heart-leaved bonewood
yellow satinheart
Nature Conservation Act 1992 (NCA) status
Least concern
Environment Protection and Biodiversity Conservation Act 1999 (EPBC) status
Conservation significant
Pest status
Short Notes
BRI 011393 (Lectotype), 066188, status annotated by T.G.Hartley
Bosistoa transversa is a small tree with dark brown smooth bark, with horizontal wrinkles and irregular blisters. The terminal buds are scaly and finely hairy. The leaves commonly have 3 leaflets, occasionally only 1 or 2. The leaflets are broad-lanceolate or elliptic, 4 to 12 cm long, the apex is shortly acuminate and the base cuneate. The leaflets are hairless and leathery, both surfaces dull and a similar colour; the main veins and net veins are very prominent and raised on the lower surface. The oil dots in the leaves are conspicuous to the naked eye and numerous; the petiole is 1 to 5 cm long, with a distinct joint at the apex. The fruit is a 1 or 2-seeded follicle about 1 cm wide with smooth transverse ribs (Harden, 2006)
Bosistoa selwynii is a synonym of B. transversa (Harden, 2006).
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Bosistoa transversa is known from the Richmond River, NSW, to Mt Larcom near Gladstone, Queensland. This species is conserved within Mt Warning National Park, Numbinbah Nature Reserve, Limpinwood Nature Reserve and Whian Whian State Forest (Floyd, 1989). Population information is unavailable; however, it has been considered that this species is common in its range (Hartley, 2004, pers. comm.). The species is conserved within Brisbane Forest Park, Kondalilla Falls National Park, and Conondale Range NP in SEQ. (Queensland Herbarium, 2012)
Distributional limits
-23.7484212, 151.0844003
-28.2302778, 153.3388529
Range derivation
Range derived from extent of the taxon's verified records
Bosistoa transversa grows in wet sclerophyll forest, dry sclerophyll forest and rainforest up to 300 m in altitude. Associated vegetation includes Argyrodendron trifoliolatum, Syzygium hodgkinsoniae, Endiandra pubens, Dendrocnide photinophylla, Acmena ingens, Diploglottis australis and Diospyros mabacea (Queensland Herbarium 2012).
Flowering has been recorded between the months of December and July. Fruiting has been recorded most of the year (Queensland Herbarium 2012).
Threatening processes
The main identified threats to Bosistoa transversa are habitat loss and degradation through clearing, fragmentation and disturbance; weed invasion; grazing by domestic stock; inappropriate fire; and timber harvesting (DECC, 2005a).
Status notes
Bosistoa transversa is listed as Vulnerable under the Environment Protection and Biodiversity Conservation Act 1999.
Occurs in the following Queensland pastoral districts: Burnett, Moreton, Port Curtis, Wide Bay. Also occurs in the New South Wales.
Floyd, A.G. (1989). Rainforest Trees of Mainland South-eastern Australia. Inkata Press, Melbourne.
Harden. G., McDonald, B. and Williams, J. (2006). Rainforest trees and shrubs - a field guide to their identification. Gwen Harden Publishing, Nambucca Heads.
Hartley, T.G. (1977). A revision of the genus Bosistoa (Rutaceae). Journal of the Arnold Arboretum 58 (4): 416-428.
Hartley, T.G. (Centre for Plant Biodiversity Research), Canberra, 2004. Personal Communication.
NSW Department of Environment and Climate Change (DECC) (2005a). Heart-leaved Bonewood - Profile. Accessed 22/05/2008.
NSW National Parks and Wildlife Service (NPWS) (2004). Parks and reserves of the Tweed Caldera - Plan of Management, Department of Environment and Climate Change. Accessed 3/06/2008.
Queensland Herbarium (2011). Specimen label information. Queensland Herbarium. Accessed 29/02/2012.
Richards, P.G. (2002) Bosistoa, In: Harden, G.J. (Ed.) Flora of New South Wales, vol. 2, University of New South Wales Press, Sydney.
Profile author
Ronald Booth (05/06/2012)

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Data source

This profile data is sourced from the QLD Wildlife Data API using the Get species by ID function used under CC-By 4.0.

This information is sourced from the WildNet database managed by the Queensland Department of Environment and Science.

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Last updated
20 May 2024