- Reference
- Hook.f., Fl.Brit.India 2:81 (1876)
- Conservation Code
- Not threatened
- Naturalised Status
- Native to Western Australia
- Name Status
- Current
Erect annual or perennial, herb, to 1 m high. Fl. yellow, Jan to Dec. Sand or gravel. Hillsides, creek banks, gullies.
Scientific Description
Genus Crotalaria. Form erect. Habit herb. Stems Indumentum hairy, Pustules or glands absent, Striation (stems ribbed) not striate, Cross section flattened. 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 15-70. Width (entire leaves only) Leaf width NaN (?). Scale leaves length mm long NaN (?). Leaflets Number three, Arrangement palmately arranged. Terminal leaflet Presence present, Stalk sessile. Indumentum Presence glabrous. Stipules Presence present and persistent to older leaves, Glands without glands, Ribs ribless. Length Stipule length 4-5. Bracteoles Presence present and persistent, Indumentum hairy (?) or glabrous (?), Striation striate (?) or not striate (?). Length Bracteole length NaN (?). Pedicel Presence present, Indumentum hairy. Length Pedicel length 2-2.7. Calyx Pustules or glands absent, Ribs ribless, Enlarged in fruit not accrescent. Length Calyx length 4-4.5. 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 7-10. Indumentum Presence absent. Standard Indumentum glabrous, Auricles not auriculate. Length Standard length 6.5-8.5. Wings Auricles not auriculate. Length Wing length 5-6. Keel Auricles not auriculate, Indumentum glabrous, Beak beaked. Length Keel length 7-8. Stamens Number ten. Anthers anther length 0.3, Position at two different levels (filaments alternately long and short). Filaments Fusion united in an open sheath. Length Filament length 3-5.2. Ovary Placement sessile or subsessile. 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 7-9. Fruit Type dehiscent (a pod or follicle), Compression round in cross-section, Placement stipitate, Beak not beaked. Length Fruit length NaN (?). Width Fruit width NaN (?). Indumentum Presence hairy, Indumentum type with simple hairs or with glandular hairs. Flowering time January, February, March, April, May, June, July, August, September, October, November or December. Distribution Botanical Province Northern or Eremaean, IBRA Bioregion Great Sandy Desert, Pilbara, Carnarvon, Gascoyne, Little Sandy Desert, Northern Kimberley, Victoria Bonaparte, Central Kimberley, Ord-Victorian-Plain, Tanami or Dampierland.
Distribution
- IBRA Regions
- Carnarvon, Central Kimberley, Dampierland, Gascoyne, Great Sandy Desert, Little Sandy Desert, Northern Kimberley, Ord Victoria Plain, Pilbara, Tanami, Victoria Bonaparte.
- IBRA Subregions
- Ashburton, Augustus, Cape Range, Chichester, Fitzroy Trough, Fortescue, Hamersley, Hart, Keep, Mackay, McLarty, Mitchell, Mount Eliza, Pentecost, Pindanland, Purnululu, Roebourne, Rudall, South Kimberley Interzone, Tanami Desert.
- IMCRA Regions
- Kimberley, Pilbara (nearshore).
- Local Government Areas (LGAs)
- Ashburton, Broome, Derby-West Kimberley, East Pilbara, Exmouth, Halls Creek, Karratha, Meekatharra, Port Hedland, Upper Gascoyne, Wyndham-East Kimberley.