Millettia thonningii
Millettia thonningii
Safety & Hazards
The leaf juice is poisonous[ 303 Title World Agroforesty Centre Publication Author Website http://www.worldagroforestry.org/ Publisher Year 0 ISBN Description An excellent online database of a huge range of trees giving very good information on each plant - its uses, ecology, identity, propagation, pests etc. ]. Millettia species in general contain a range of toxic substances, especially isoflavones. Rotenone is probably the best known of these isoflavones and it is found especially in the seeds and roots of the plants. Rotenone is often used locally as a fish poison - the rotenone kills or stuns the fish making them easy to catch, but the fish remain perfectly safe for warm-blooded creatures to eat. Rotenone is classified by the World Health Organization as moderately hazardous. It is mildly toxic to humans and other mammals, but extremely toxic to many insects (hence its use as an insecticide) and also to aquatic life, including fish. This higher toxicity in fish and insects is because the lipophilic rotenone is easily taken up through the gills or trachea, but not as easily through the skin or the gastrointestinal tract. The lowest lethal dose for a child is 143 mg/kg, but human deaths from rotenone poisoning are rare because its irritating action causes vomiting. Deliberate ingestion of rotenone, however, can be fatal. The compound decomposes when exposed to sunlight and usually has an activity of six days in the environment. Millettia species often also contain other potentially toxic compounds, especially saponins and alkaloids[ 1309 Title The Leguminosae; A Source Book of Characteristics, Uses and Nodulation Publication Author Allen O.N.; Allen E.K. Publisher University of Wisconsin Year 1981 ISBN 0-333-32221-5 Description An amazing and comprehensive work, giving a brief guide to the many genera of the family Fabaceae and also the principle uses of the genus. ].
Botanical Description
Millettia thonningii is a deciduous tree with a large, dense crown; it can grow 9 - 20 metres tall. The bole can be up to 100cm in diameter; it is generally short, though it can reach up to 9 metres at times[ 303 Title World Agroforesty Centre Publication Author Website http://www.worldagroforestry.org/ Publisher Year 0 ISBN Description An excellent online database of a huge range of trees giving very good information on each plant - its uses, ecology, identity, propagation, pests etc. , 328 Title African Flowering Plants Database Publication Author Website http://www.ville-ge.ch/musinfo/bd/cjb/africa/recherche.php Publisher Conservatoire et Jardin Botaniques. Year 0 ISBN Description Contains information on over 150,000 plant names (including synonyms) giving a description and habitat, plus a distribution map. ]. The tree is harvested from the wild for local use as a medicine and source of wood. An ornamental tree, the large crown can be filled with beautiful mauve flowers when the tree is almost leafless[ 328 Title African Flowering Plants Database Publication Author Website http://www.ville-ge.ch/musinfo/bd/cjb/africa/recherche.php Publisher Conservatoire et Jardin Botaniques. Year 0 ISBN Description Contains information on over 150,000 plant names (including synonyms) giving a description and habitat, plus a distribution map. ]. It is commonly planted in villages in western Africa[ 328 Title African Flowering Plants Database Publication Author Website http://www.ville-ge.ch/musinfo/bd/cjb/africa/recherche.php Publisher Conservatoire et Jardin Botaniques. Year 0 ISBN Description Contains information on over 150,000 plant names (including synonyms) giving a description and habitat, plus a distribution map. ]. The tree produces leaves heavily, hence when in leaf provides shade on avenues[ 303 Title World Agroforesty Centre Publication Author Website http://www.worldagroforestry.org/ Publisher Year 0 ISBN Description An excellent online database of a huge range of trees giving very good information on each plant - its uses, ecology, identity, propagation, pests etc. ].