Hypericum species

dc.contributor.authorBotha, C.J. (Christoffel Jacobus)
dc.contributor.authorVenter, Elna
dc.contributor.emailchristo.botha@up.ac.zaen
dc.contributor.otherUniversity of Pretoria. Faculty of Veterinary Science. Dept. of Paraclinical Sciences. Section Pharmacology and Toxicology
dc.coverage.spatialAfricaen
dc.coverage.spatialSouth Africaen
dc.date.accessioned2008-12-19T11:05:10Z
dc.date.available2008-12-19T11:05:10Z
dc.date.issued2002
dc.descriptionColour photos. Final web-ready size: JPEG, 72 ppi. Photo 1: 25.3 kb; Photo 2: 17.8 kb; Photo 3: 25.4 kb, Photo 4: 10.5 kb, Photo 5: 28.4 kb. Original TIFF file housed at the Dept. of Paraclinical Sciences, Section Pharmacology and Toxicology, University of Pretoria.en
dc.description.abstractDISTRIBUTION: Occurs in a wide variety of habitats, most commonly in stony areas or open grassland. Also near water, in marshy or damp places, between rocks as well as on old lands.en
dc.description.abstractBOTANICAL DESCRIPTION: Hypericum aethiopicum General: A herb, 20 - 50 cm high with a perennial woody underground root system and annual, mostly unbranched, gland-dotted stems. Leaves: Small, ovate, stalkless, in opposite pairs. Usually dotted with small dark glands. Flowers: Yellow, with reddish-brown sepals, near the tips of the stems. September - March. Fruit: A 3-chambered papery capsule, containing many fine seeds.en
dc.description.abstractTOXIC PRINCIPLE: Photodynamic agent: hypericin. Hypericin is a red-fluorescent pigment contained especially in glands (black dots) in the leaves, stems and petals.en
dc.description.abstractSYNDROMES: Primary photosensitivity.en
dc.description.abstractSYSTEMS AFFECTED: Liver.en
dc.description.abstractCLINICAL SIGNS: All animal species are affected when the plants are eaten. Horses are especially sensitive. Poisoning is rare, however. Photodermatitis without icterus.en
dc.description.abstractTREATMENT: Keep in shade. Symptomatic treatment of the skin. Antihistamines. Corticosteroids.en
dc.description.urihttp://www.library.up.ac.za/vet/poisonen
dc.identifier.citationBotha, CJ & Venter, E 2002, 'Plants poisonous to livestock Southern Africa (CD-ROM)' University of Pretoria, Faculty of Veterinary Science, Dept. of Paraclinical Sciences, Section Pharmacology and Toxicology, Pretoria, South Africa.en
dc.identifier.urihttp://hdl.handle.net/2263/8502
dc.rights©University of Pretoria. Dept. of Paraclinical Sciences, Section Pharmacology and Toxicology (Original and digital). Provided for educational purposes only. It may not be downloaded, reproduced or distributed in any format without written permission of the original copyright holder. Any attempt to circumvent the access controls placed on this file is a violation of copyright laws and is subject to criminal prosecution. Please contact the collection administrator for copyright issues.en
dc.sourceOriginal format: University of Pretoria, Faculty of Veterinary Science.en
dc.subjectPlant poisoningen
dc.subjectToxicologyen
dc.subjectPlant poisoning in animalsen
dc.subjectPoisonous plantsen
dc.subjectPhotosensitivityen
dc.subjectHypericinen
dc.subject.lcshPoisonous plants -- Toxicology -- Africa, Southernen
dc.subject.lcshVeterinary toxicologyen
dc.titleHypericum speciesen
dc.title.alternativeHypericum aethiopicumen
dc.title.alternativeSt. John's Worten
dc.title.alternativeJohanneskruidaf
dc.title.alternativeVlieëbossieaf
dc.title.alternativeHypericum lanceolatumen
dc.typeStill Imageen

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