- Reference
- Sp.Pl. [Linnaeus] 716 (1753)
- Conservation Code
- Priority One
- Naturalised Status
- Native to Western Australia
- Name Status
- Current
Erect annual, herb, to 1 m high. Fl. yellow, Mar. Swamp.
Scientific Description
Genus Crotalaria. Form erect. Habit herb. Stems Indumentum hairy, Pustules or glands absent, Striation (stems ribbed) striate, Cross section angular, Spiny on any part of plant not spiny. Leaves or phylloclades Presence clearly present, Position alternate, Leaves compound, Leaves or phylloclade continuous with stem not 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 35-95. 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 with glands (?) or without glands (?), Ribs ribbed (?) or ribless (?). Length Stipule length NaN (?). Bracteoles Presence present and persistent, Indumentum hairy (?) or glabrous (?), Striation striate (?) or not striate (?). Length Bracteole length NaN (?). Pedicel Presence present, Indumentum glabrous. Length Pedicel length 9-10. Calyx Pustules or glands absent, Ribs ribless, Enlarged in fruit not accrescent. Length Calyx length 11-13. Indumentum Presence glabrous. Corolla Colour patterning uniformly coloured, Colour (when uniformly coloured) yellow, Petal claws ( the narrow base of the petals present. Length Corolla length 15-20. Indumentum Presence absent. Standard Indumentum glabrous, Auricles not auriculate. Length Standard length 16-19. Wings Auricles not auriculate. Length Wing length 14-16. Keel Auricles not auriculate, Indumentum glabrous, Beak beaked. Length Keel length 13-15. Stamens Number ten. Anthers anther length 0.7-2.3, Position at two different levels (filaments alternately long and short). Filaments Fusion united in an open sheath. Length Filament length 14-17. Ovary Placement stipitate. Indumentum Presence glabrous. Style Indumentum glabrous, Bearded ( with a tuft of hairs at apex ) not bearded, Apex terete. Length Style length 17-19. 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 45-50. Width Fruit width 15-18. Indumentum Presence glabrous. Flowering time March. Distribution Botanical Province Northern, IBRA Bioregion Northern Kimberley. Conservation Code Priority One (P1).
Distribution
- IBRA Regions
- Northern Kimberley.
- IBRA Subregions
- Mitchell.
- Local Government Areas (LGAs)
- Wyndham-East Kimberley.