Trees are either male or female, with male flowers an orange to brown or white colour and red female flowers. The flower heads form large hanging groups, made up of many small flowers. The colour of the flowers actually comes from modified leaves called bracts rather than true petals. The fruits are small and dried, hidden within the dried part of the flower. This species grows up to 25 m in height. The leaves are pinnately compound reaching lengths of 40 cm; with hairy, dark green, slightly serrated leaflets.
|Published (Last):||26 March 2010|
|PDF File Size:||18.18 Mb|
|ePub File Size:||17.29 Mb|
|Price:||Free* [*Free Regsitration Required]|
Species: H. Binomial name: Hagenia abyssinica Common names: African redwood, brayera, cusso, hagenia Hagenia abyssinica is the sole species of genus Hagenia. It is a species of flowering plant native to the high-elevation Afromontane regions of central and eastern Africa. It also has a disjunct distribution one in which two closely related taxa are widely separated geographically in the high mountains of East Africa from Sudan and Ethiopia in the north, through Kenya, Uganda, Rwanda, Burundi, Democratic Republic of Congo, and Tanzania, to Malawi and Zambia in the south.
It is a very rare plant in New Zealand and is seldom found growing. An adult tree is growing in the grounds of Burgess Park, New Plymouth. Hagenia abyssinica is a dioecious tree up to 20 m in height, with a trunk with thick peeling bark.
The trees have either male or female flowers. Flowering and seeding can be observed throughout the year with a break in the months with the coldest temperatures. Hagenia abyssinica is an important medicinal plant in Africa that societies relied on for generations for combating various ailments.
Hagenia has been used as a remedy for intestinal parasites. It has served as an anathematic in ruminants also against tapeworms in humans. Besides being a source of medicine, Hagenia has been utilized for various other purposes such as construction, furniture, fuel wood, and soil fertility management. As a result of its enormous significance, H. Closeup showing the hairy underside of the leaf. The serrated margin of the leaf. The flakey bark of the trunk.
Kew Species Profiles General Description An attractive African tree with soft leaves and hanging flower sprays, Hagenia abyssinica also has many uses. The wood is used for carving, carpentry, firewood and charcoal, and the flowers, roots and bark are used for medicinal purposes. It occurs in montane forests, especially in the upper forest region, at 2,, m. On most East African mountains, Hagenia abyssinica is common just below the tree-line at about 3, metres above sea level , where it may form almost pure woodlands. Description Overview: A tree up to 25 m tall, often with a crooked bole unbranched part of the trunk. The bark is reddish brown, fissured and peeling. Trees are either male or female and only rarely are flowers of both sexes found on the same tree.
Description[ edit ] It is known in English as African redwood, East African rosewood,  brayera, cusso, hagenia, or kousso, in Amharic as kosso, and in Swahili as mdobore or mlozilozi. It is the sole species of genus Hagenia, and its closest relative is the Afromontane genus Leucosidea. Synonyms include Banksia abyssinica, Brayera anthelmintica, Hagenia abyssinica var. It is a tree up to 20 m in height, with a short trunk, thick branches, and thick, peeling bark.