Common Name: Kousso. Hagenia abyssinica. Drawing of the leaves, flowers, fruits and seed. Photograph by: Franz Eugen Köhler, Köhler’s Medizinal-Pflanzen. This study provides insight into the medicinal importance of Hagenia abyssinica as well as the degree of threat on its population. Throughout history, Hagenia abyssinica has been used as an anthelmintic in Ethiopia and other parts of Africa. Almost every Ethiopian used to.

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First published in Syst. Each leaf is held on a winged leaf-stalk, measuring cm long in total. A royalty fee is required for hageenia licence to exploit it.

Hagenia abyssinica is unable to regenerate in areas suffering from a high level of grazing. This page was last modified on 27 Julyat Leaves Leaves imparipinnate, up to 40 cm. Birds Land and Estuaries Listed by binomial names and photos.

Hagenia abyssinica – Useful Tropical Plants

Although it is often stated that abyssincia flowers should be used, most tests reveal no difference in effect between male and female flowers. Johnswort Idesia polycarpa Wonder Tree.


The bark is reddish brown, fissured and peeling. Hagenia abyssinica is worthy of protection and worth planting for its ornamental value.

Hagenia abyssinica

Hagenia abyssinica hagenia Image: Highly valued by locals for its uses, Hagenia abyssinica is often left standing when forest is cleared. Slugs, Snails Flatworms, Worms Terrestrial.

Hagenia is monotypic and very characteristic with its dioecism, pinnate, silky leaves and large, drooping inflorescences.

Although this species has not yet been assessed on the IUCN Red List, its many uses and loss of habitat mean that populations are decreasing as deforestation continues throughout hgenia Afromontane forests. An infusion made using dried and pounded female flowers has been used widely against tapeworms. In Tanzania, Hagenia abyssinica is grown in agroforestry systems; the wood is used as fuel, the leaves as fodder and green manure, and the seeds as a condiment or spice.

The trees have either male or female flowers. G to L Common names with photo.

R to Z Common names with photo. The fruits are small and dried, hidden within the dried part of the flower.

It is difficult to predict the medicinal future of Hagenia abyssinica. Hagenia abyssinica has been used in Ethiopia for centuries.


No germplasm collections are known. East African Redwood, Kosso. Before abywsinica, kosso was listed as an anthelmintic in the pharmacopoeias of about 30 countries. Commercial kosin extraction from flowers depends on quality, demand and price. However, its use is rapidly diminishing.

In abyssinca southern highlands of Tanzania, Hagenia abyssinica is a protected tree. Throughout history, Hagenia abyssinica has been used as an anthelmintic in Ethiopia and other parts of Africa. Research, Analysis and Information Network.

African Redwood – Global Trees

Plants Exotic Botanical names with photo. Phytochemical studies on male and female flowers of Hagenia abyssinica by column chromatography, thin-layer chromatography and high-performance liquid chromatography. Frequent doses of kosso, about once every two months, was the common cure. Banksia abyssinica Bruce Brayera anthelmintica Kunth ex A. The dark red wood is used for furniture, abysainica and carving, but is not durable. Leucospermum reflexum Sky-rocket leucospermum Ligustrum japonicum Japanese privet.