Giant Milkwood (Calotropis procera) is a species of flowering plant in the family Apocynaceae that is native to North Africa, Pakistan, tropical Africa, Western Asia, South Asia and Indochina. It typically grows to a height of 6 feet in sunny and partly shaded habitats, including overgrazed pastures, rangeland, roadsides, river flats and coastal dunes. Its green fruits contain a toxic milky sap that is extremely bitter and turns into a gluey coating which is resistant to soap.
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1968 Wildflowers of Malawi – 4d Calotropis procera