Species Profile and Threats Database

For information to assist proponents in referral, environmental assessments and compliance issues, refer to the Policy Statements and Guidelines (where available), the Conservation Advice (where available) or the Listing Advice (where available).
In addition, proponents and land managers should refer to the Recovery Plan (where available) or the Conservation Advice (where available) for recovery, mitigation and conservation information.

EPBC Act Listing Status Listed as Critically Endangered as Philotheca falcata
Adopted/Made Recovery Plans
Federal Register of
    Legislative Instruments
Declaration under s178, s181, and s183 of the Environment Protection and Biodiversity Conservation Act 1999 - List of threatened species, List of threatened ecological communities and List of threatening processes (Commonwealth of Australia, 2000) [Legislative Instrument] as Philotheca falcata.
Amendment to the list of threatened species under section 178 of the Environment Protection and Biodiversity Conservation Act 1999 (107) (09/09/2011) (Commonwealth of Australia, 2011c) [Legislative Instrument] as Philotheca falcata.
State Listing Status
WA: Listed as Endangered (Wildlife Conservation Act 1950 (Western Australia): September 2013 list) as Philotheca falcata
Scientific name Philotheca falcata [64943]
Family Rutaceae:Sapindales:Magnoliopsida:Magnoliophyta:Plantae
Species author (Paul G.Wilson) Paul G.Wilson
Infraspecies author  
Reference Wilson, Paul G. (1998) A taxonomic review of the genera Eriostemon and Philotheca (Rutaceae: Boronieae). Nuytsia 12(2): 251 [comb. nov.]
Other names Eriostemon falcatus [7079]
Distribution map Species Distribution Map

This is an indicative distribution map of the present distribution of the species based on best available knowledge. See map caveat for more information.

Illustrations Google Images

Scientific name: Philotheca falcata

Common name: Sickle-leaved Waxflower

The Sickle-leaved Waxflower was previously known as Eriostemon falcatus (Wilson 1998a).

The Sickle-leaved Waxflower is a small, many-branched shrub growing to about 20 cm high. The branchlets are densely covered with glandular warts and minute hairs in narrow lines. The leaves are shortly-stalked, slender-cylindrical, sickle-shaped, about 6 mm long, warty, and with a rounded tip. The flowers are white, borne singly at the ends of the branches on pedicels about 2 mm long. The 5 white elliptical petals are up to 7 mm long, hairless outside, but covered with short hairs on the inner surface. The 5 sepals are narrowly triangular and somewhat warty, about 3 mm long, with a fleshy, almost cylindrical tip (Wilson 1970).

The Sickle-leaved Waxflower is known from an area south of Southern Cross in Western Australia, near Sloss Nature Reserve (NR) and Welsh NR (Western Australian Herbarium 2013).

The species was first collected in 1931 from Yellowdine, 30 km east of Southern Cross, where it is now considered locally extinct (Brown et al. 1998; Leigh et al 1984; Wilson 1970a pers. comm.). Collections from an area 5 km south of Tjirrkarli Outstation at Blyth Pool in the Gibson Desert (Wilson 1998a), and north of Salmon Gums (Hopper et al. 1990), are not confirmed (Western Australian Herbarium 2013).

In Yellowdine, the Sickle-leaved Waxflower grew in Mulga (Acacia aneura) shrubland on rocky slopes of red skeletal laterite (Wilson 1998a).

Flowering occurs in October (Western Australian Herbarium 2013).

The type-locality of the Sickle-leaved Waxflower is a wheat growing area and clearing for cropping may have eliminated the species (Leigh et al. 1984)

Management documents relevant to the Sickle-leaved Waxflower are at the start of the profile.

No threats data available.

Brown, A., C. Thomson-Dans & N. Marchant, eds. (1998). Western Australia's Threatened Flora. Como, Western Australia: Department of Conservation and Land Management.

Hopper, S.D., S. van Leeuwen, A.P. Brown & S.J. Patrick (1990). Western Australia's Endangered Flora and other plants under consideration for declaration. Perth, Western Australia: Department of Consrvation and Land Management.

Leigh, J., R. Boden & J. Briggs (1984). Extinct and Endangered Plants of Australia. Melbourne, Victoria: Macmillan.

Western Australian Herbarium (2013). FloraBase: The Western Australian Flora. [Online]. Available from:

Wilson, P.G. (1970). A Taxonomic Revision of the genera Crowea, Eriostemon and Phebalium (Rutaceae). Nuytsia. 1:1-155.

Wilson, P.G. (1970a). Personal Communication.

Wilson, P.G. (1998a). A taxonomic review of the genera Eriostemon and Philotheca (Rutaceae: Boronieae). Nuytsia. 12(2):239-265.

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This database is designed to provide statutory, biological and ecological information on species and ecological communities, migratory species, marine species, and species and species products subject to international trade and commercial use protected under the Environment Protection and Biodiversity Conservation Act 1999 (the EPBC Act). It has been compiled from a range of sources including listing advice, recovery plans, published literature and individual experts. While reasonable efforts have been made to ensure the accuracy of the information, no guarantee is given, nor responsibility taken, by the Commonwealth for its accuracy, currency or completeness. The Commonwealth does not accept any responsibility for any loss or damage that may be occasioned directly or indirectly through the use of, or reliance on, the information contained in this database. The information contained in this database does not necessarily represent the views of the Commonwealth. This database is not intended to be a complete source of information on the matters it deals with. Individuals and organisations should consider all the available information, including that available from other sources, in deciding whether there is a need to make a referral or apply for a permit or exemption under the EPBC Act.

Citation: Department of the Environment (2014). Philotheca falcata in Species Profile and Threats Database, Department of the Environment, Canberra. Available from: Accessed Mon, 22 Sep 2014 23:41:25 +1000.