Geigeria

Geigeria

a genus of plants in the family Asteraceae. Contain sesquiterpene lactones which cause vermeersiekte—degeneration of skeletal muscles manifested as stiffness and paralysis, plus brain and spinal cord damage. There is also esophageal dilation and vomition. Includes G. aspera var. aspera, G. burkei subsp. burkei var. zeyheri, G. filifolia, G. ornativa (G. africana), G. passerinoides, G. pectidae.
References in periodicals archive ?
In the description of outbreaks of intoxication by a plant of the genus Geigeria in bovine and sheep in South Africa, in addition to megaesophagus it was also observed degeneration and necrosis in skeletal and esophageal muscles (VANDER, 1993).
Especies de otros generos de asteraceas tambien han sido mencionadas por su toxicidad para el hombre y los animales; entre ellos destacan los siguientes: Ambrosia, Anthemis, Arnica, Artemisia, Aster, Baileya, Barkleyanthus, Bidens, Cirsium, Conyza, Chromolaena, Elephantopus, Geigeria, Gutierrezia, Haplopappus, Helenium, Iva, Lactuca, Leucanthemum, Ligularia, Lygodesmia, Mikania, Packera, Parthenium, Pittocaulon, Psacalium, Psilostrophe, Rudbeckia, Sigesbeckia, Solidago, Sommerfeltia, Sonchus, Tagetes, Tanacetum, Telanthophora, Tetradymia, Trixis, Vernonia, Zexmenia, etc.