DC., belongs to the plant family Oleaceae.The plant is used by indigenous farmers in Kenya against internal parasites affecting livestock. The anthelmintic effects of water extract of the leaves obtained from one geographic region was tested on naturally infected adult sheep and lambs with the nematode Haemonchus contortus
. Sheep faecal samples were collected at day 7 for Haemonchus contortus
faecal egg counts by the Mc Master slide technique. Results showed that ground leaves of Jasminum abyssinicum
was efficacious with significant faecal egg count reductions of 69% at day 7 post treatment.