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Service Notice

The Western Australian Herbarium’s collections management system, WAHerb, and DBCA’s taxonomic names application, WACensus, have been set to read-only mode since 1 October 2025. Recent taxonomic changes are not reflected in Florabase, herbarium collections, or in the census. We are hoping to be able to reinstate services around December 15; we will provide an update at that time.

The notice period started at 9:00 am on Wednesday, 1 October 2025 +08:00 and will end at 12:00 pm on Monday, 15 December 2025 +08:00.

Boronia megastigma Bartl.
Scented Boronia

Reference
Lehm., Pl.Preiss. [J.G.C.Lehmann] 2:227 (1848)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Erect, slender, scented shrub, 0.2-2 m high. Fl. brown & yellow/green, Jul to Oct. Peaty sand. Winter-wet swamps,.

Grazyna Paczkowska, Descriptive Catalogue, 19 August 1996
Image

Scientific Description

Shrub, spines absent; branchlets smooth, without distinct raised glands, +/- cylindrical in cross-section, covered in hairs or scales, the hairs stellate (star-shaped). Leaves opposite, simple or compound, 8-18 mm long, with 3 leaflets, each 5-10 mm long, 1 mm wide, flat, the margins flat, smooth, without distinct raised glands, glabrous; stipular excrescences absent. Flowers axillary, solitary; pedicels 5-6 mm long; calyx present, 3-3.5 mm long, smooth, without distinct raised glands, glabrous; corolla yellow, green or brown, petals four, 7-10 mm long, imbricate (overlapping), free, glabrous; stamens twice as many as petals, smooth, glabrous, with an appendage. Flowers in July, August, September and October. Occurs in the South-West Botanical Province, in the Jarrah Forest, Warren and Esperance IBRA region(s).

C. Hollister and K.R. Thiele, 14 November 2023

Distribution

IBRA Regions
Esperance Plains, Jarrah Forest, Swan Coastal Plain, Warren.
IBRA Subregions
Fitzgerald, Northern Jarrah Forest, Perth, Southern Jarrah Forest, Warren.
Local Government Areas (LGAs)
Albany, Augusta Margaret River, Bridgetown-Greenbushes, Busselton, Capel, Collie, Cranbrook, Denmark, Donnybrook-Balingup, Harvey, Manjimup, Nannup, Plantagenet, West Arthur.