Originally from South America, it is an escaped exotic and a declared weed that has to be eradicated in South Africa. Found especially along watercourses and on disturbed soil.
General: A deciduous shrub or small tree.
Leaves: Drooping, compound dark green leaves.
Flowers: Red or orange pea-like flowers in dense sprays. Spring - early summer.
Fruit: The seeds are carried in a characteristic long four-winged pod with a sharply pointed tip.
Sesbanimide (a cyclohexamide) and related compounds.
• Sesbanimide: highly toxic
• Seeds: c.0,5 to 1 g / kg (6 seeds for a pigeon)
• Seeds must be broken in g.i.t. to be toxic.
• Waterfowl much less susceptible, because the seeds are not broken.
• Plant leaves and flowers much less toxic
• Toxin cumulative.
An intoxication of birds, especially pigeons and chickens associated with diarrhoea when ingesting seeds of the plant.
• Depression and weakness
• Ruffled feathers, drooping wings
• Vomition (pigeons)
Proventricular hyperaemia and haemorrhages.
Prevention: Avoid seeds, for birds especially. Potentially toxic to all species. Regard all Sesbania spp with suspicion.
Colour photos. Final web-ready size: JPEG. Photo 1: 9.7 kb, 72 ppi; Photo 2: 20.7 kb, 72 ppi; Photo 3: 16.5 kb, 72 ppi; Photo 4: 85.3 kb, 300 ppi. Original TIFF file housed at the Dept. of Paraclinical Sciences, Section Pharmacology and Toxicology, University of Pretoria.