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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. Due to the rapidly approaching holiday season and associated agency and facility soft closures, along with the substantial work involved in data mapping, cleaning, and verification, the migration to the new collection management software is not expected to occur before 1 March 2026, when a further update will be provided. Please reach out to us if you have any questions or concerns.

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Cajanus crassicaulis Maesen

Reference
Agric.Univ.Wageningen Pap. 85-4:103-105 (1986)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Erect, open, spindly, weeping shrub, 1.2-2.1 m high. Fl. yellow, Apr to Jul or Nov. Sandstone or limestone. Rocky gullies, stony watercourses, hillsides, outcrops.

Grazyna Paczkowska, Descriptive Catalogue, 27 May 1996

Scientific Description

Genus Cajanus. Form prostrate,spreading or scrambling. Habit shrub, spindly shrub (broom-like). Stems Indumentum hairy, Pustules or glands absent, Striation (stems ribbed) not striate, Cross section terete, Spiny on any part of plant not spiny. Leaves or phylloclades Presence clearly present, Position alternate, Leaves compound, Leaves or phylloclade continuous with stem continuous with stem, Cross section of leaf or leaflet flat with flat margins, Margins of leaf or leaflet entire, Tuberculate tubercles absent, Pustules or glands absent. Length Leaf length 35-105. Width (entire leaves only) Leaf width NaN (?). Scale leaves length mm long NaN (?). Leaflets Number three, Arrangement pinnately arranged. Terminal leaflet Stalk stalked. Indumentum Presence hairy, Type simple. Stipules Presence present and persistent to older leaves, Glands with glands (?) or without glands (?), Ribs ribbed (?) or ribless (?). Length Stipule length NaN (?). Bracteoles Presence absent, Indumentum hairy (?) or glabrous (?), Striation striate (?) or not striate (?). Length Bracteole length NaN (?). Pedicel Presence present, Indumentum hairy. Length Pedicel length 10-15. Calyx Pustules or glands absent, Ribs ribless, Enlarged in fruit not accrescent. Length Calyx length 9-14. Indumentum Presence hairy, Type with simple hairs. Corolla Colour patterning uniformly coloured, Colour (when uniformly coloured) yellow, Petal claws ( the narrow base of the petals absent. Length Corolla length 12-20. Indumentum Presence absent. Standard Indumentum glabrous, Auricles not auriculate. Length Standard length 11-18. Wings Auricles auriculate. Length Wing length 13-15. Keel Auricles not auriculate, Indumentum glabrous, Beak not beaked. Length Keel length 12-16. Stamens Number ten. Anthers anther length 1-1.2, Position at two different levels (filaments alternately long and short). Filaments Fusion united in an open sheath with one free stamen. Length Filament length 10-18.5. Ovary Placement sessile or subsessile. Indumentum Presence glabrous. Style Indumentum glabrous, Bearded ( with a tuft of hairs at apex ) not bearded, Apex terete. Length Style length 16-21. Fruit Type dehiscent (a pod or follicle), Constriction constricted between the seeds, Compression flat or compressed, Placement sessile or subsessile, Beak not beaked. Length Fruit length 25-30. Width Fruit width 6-8. Indumentum Presence hairy, Indumentum type with simple hairs. Flowering time April, May, June, July or November. Distribution Botanical Province Northern, IBRA Bioregion Central Kimberley or Ord-Victorian-Plain.

C. Hollister and K.R. Thiele, 17 April 2024

Distribution

IBRA Regions
Central Kimberley, Ord Victoria Plain.
IBRA Subregions
Pentecost, Purnululu.
Local Government Areas (LGAs)
Derby-West Kimberley, Halls Creek, Wyndham-East Kimberley.