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The Western Australian Herbarium’s collections management system, WAHerb, and DBCA’s flora taxonomic names application, WACensus, have been set to read-only mode since 1 October 2025. Recent taxonomic changes are not currently being reflected in Florabase, herbarium collections, or the census. The project team is now conducting testing of the migrated data, and a further update will be provided by the end of the financial year (1 July). Please reach out to us if you have any questions or concerns.

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Lechenaultia expansa R.Br.

Reference
Prodr. 581 (1810)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Prostrate to ascending shrub, 0.15-0.6 m high. Fl. blue-purple/blue-white, Oct to Dec or Jan. Sandy soils. Swampy areas.

Grazyna Paczkowska, Descriptive Catalogue, 19 March 1996
Image

Scientific Description

Stems ribbed. Leaves flat, 4-9 mm long, 0.5-0.8 mm wide, Indumentum absent (leaves glabrous); margins entire. Bracteoles absent. Pedicel pedicellate, Pedicel length the pedicels 1.5-5 mm long, glabrous. Calyx lobes present, Calyx length 4.5-5 mm long, glabrous. Corolla blue, 8-14 mm long, without auricles, not spurred, glabrous on the outside, hairy on the inside; central lobes 4-8.5 mm long, with wings; outer lobes 3.4 mm long, wings present on both sides, 0.3-0.5 mm wide. Anthers free. Ovary inferior, not gibbose; style 5-8 mm long, hairy; indusium single, hairy; ovules more than two. Flowers in January, October, November and December. Occurs in the Swan Coastal Plain (SWA), Avon Wheatbelt (AW), Jarrah Forest (JF), Mallee (MAL) and Warren (WAR) IBRA Region(s), of the South West (SW) Botanical Province.

C. Hollister and K.R. Thiele, 2 August 2023

Distribution

IBRA Regions
Jarrah Forest, Swan Coastal Plain, Warren.
IBRA Subregions
Dandaragan Plateau, Northern Jarrah Forest, Perth, Southern Jarrah Forest, Warren.
IMCRA Regions
WA South Coast.
Local Government Areas (LGAs)
Albany, Armadale, Augusta Margaret River, Bridgetown-Greenbushes, Bunbury, Busselton, Canning, Chittering, Cockburn, Collie, Denmark, Donnybrook-Balingup, Gingin, Gosnells, Harvey, Manjimup, Mundaring, Murray, Nannup, Plantagenet, Serpentine-Jarrahdale, Swan, Wandering, West Arthur.