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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.

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.