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Service Notice

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.

The notice period started at 9:45 am on Friday, 12 December 2025 +08:00 and will end at 12:00 pm on Wednesday, 1 July 2026 +08:00.

Zanthoxylum rhetsa (Roxb.) DC.

Reference
Prodr. 1:728 (1824)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Scientific Description

Tree or shrub, spines present; branchlets smooth, without distinct raised glands, +/- cylindrical in cross-section, glabrous. Leaves alternate, compound, 125-270 mm long, with 9-25 leaflets, each 9-19 mm long, 14-25 mm wide, flat, the margins flat, smooth, without distinct raised glands, glabrous; stipular excrescences absent. Flowers; pedicels 1.5-6 mm long; calyx present, 0.5-1 mm long, smooth, without distinct raised glands, glabrous; corolla white or cream, petals four, 1.5-2 mm long, imbricate (overlapping), free, glabrous. Flowers in January, February, November and December. Occurs in the Northern Botanical Province, in the North Kimberley IBRA region(s).

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

Distribution

IBRA Regions
Northern Kimberley.
IBRA Subregions
Berkeley, Mitchell.
IMCRA Regions
Kimberley.
Local Government Areas (LGAs)
Wyndham-East Kimberley.