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Crotalaria dissitiflora Benth.
Grey Rattlepod

Reference
T.Mitch., J.Exped.Trop.Australia 386 (1848)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Perennial, herb, to 0.3 m high. Fl. yellow, Jun. Black soil. Plain.

Grazyna Paczkowska, Descriptive Catalogue, 30 May 1996

Scientific Description

Genus Crotalaria. Form erect. Habit herb. Stems Indumentum hairy, Pustules or glands absent, Striation (stems ribbed) 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 20-35. Width (entire leaves only) Leaf width NaN (?). Scale leaves length mm long NaN (?). Leaflets Number three, Arrangement pinnately arranged. Terminal leaflet Presence present, Stalk stalked. Indumentum Presence hairy, Type simple. Stipules Presence present and persistent to older leaves, Glands without glands, Ribs ribless. Length Stipule length 1.5-2.5. Bracteoles Presence present and persistent, Indumentum hairy, Striation not striate. Length Bracteole length 0.5-1. Pedicel Presence present, Indumentum hairy. Length Pedicel length 1.5-2. Calyx Pustules or glands absent, Ribs ribless, Enlarged in fruit not accrescent. Length Calyx length 3-3.5. 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 present. Length Corolla length 7-8.6. Indumentum Presence absent. Standard Indumentum hairy at least in part, Auricles not auriculate. Length Standard length 7-8.7. Wings Auricles not auriculate. Length Wing length 5.5-6.5. Keel Auricles not auriculate, Indumentum hairy at least in part, Beak not beaked. Length Keel length 7-8.5. Stamens Number ten. Anthers anther length 0.8, Position at two different levels (filaments alternately long and short). Length Filament length 3-3.2. Ovary Placement stipitate. Indumentum Presence hairy or glandular. Style Indumentum hairy or glandular towards the base, Bearded ( with a tuft of hairs at apex ) not bearded, Apex terete. Length Style length 8-9. Fruit Type dehiscent (a pod or follicle), Constriction not constricted between the seeds, Compression round in cross-section, Placement stipitate, Beak not beaked. Length Fruit length 14-22. Width Fruit width 3.5-8. Indumentum Presence glabrous. Flowering time June. Distribution Botanical Province Northern or Eremaean, IBRA Bioregion Pilbara or Central Kimberley.

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

Distribution

IBRA Regions
Central Kimberley, Ord Victoria Plain, Pilbara.
IBRA Subregions
Chichester, Fortescue, Hamersley, Pentecost, Purnululu, Roebourne, South Kimberley Interzone.
Local Government Areas (LGAs)
Ashburton, Derby-West Kimberley, East Pilbara, Halls Creek, Karratha, Port Hedland.