Sesbania simpliciuscula is a species of flowering plant in the family Fabaceae. It is a herb or shrub with yellow flowers. The species is native to Western Australia, and was first validly described in 1864.
Taxonomy The name Sesbania simpliciuscula was first validly published by George Bentham in 1864, following an invalid publication by Ferdinand von Mueller.
Two varieties are recognised: Sesbania simpliciuscula var. fitzroyensis Sesbania simpliciuscula var. simpliciuscula
Distribution Sesbania simpliciuscula is native to the deserts and dry shrublands of Western Australia.
Description Sesbania simpliciuscula is a herb or shrub that grows up to high. The plant has narrowly oblong leaflets, which are long, and wide. The leaflets are arranged into ten to thirty-five pairs.
The inflorescence is a raceme with six to sixteen flowers. The flower stems are long. The calyx is long. The corolla is yellow, and often has red flecks. The standard, wings, and keel are long. The plant flowers from January to October.
The fruit is a pod measuring long, and wide. The seeds are around long, and around wide. The plant fruits in October, and from March to July.
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