Hagenia

 

Hagenia

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Hagenia
Hagenia abyssinica - Köhler–s Medizinal-Pflanzen-208.jpg
Hagenia abyssinica
Scientific classificationedit
Kingdom:Plantae
Clade:Tracheophytes
Clade:Angiosperms
Clade:Eudicots
Clade:Rosids
Order:Rosales
Family:Rosaceae
Subfamily:Rosoideae
Tribe:Sanguisorbeae
Subtribe:Agrimoniinae
Genus:Hagenia
J.F.Gmel.
Species:
H. abyssinica
Binomial name
Hagenia abyssinica
Willd.

Hagenia is a monotypic genus of flowering plant with the sole species Hagenia abyssinica, native to the high-elevation Afromontane regions of central and eastern Africa. It also has a disjunct distribution in the high mountains of East Africa from Sudan and Ethiopia in the north, through KenyaUgandaRwandaBurundiDemocratic Republic of Congo, and Tanzania, to Malawi and Zambia in the south.

It is known in English as African redwoodEast African rosewood,[1] brayeracussohagenia, or kousso, in Amharic as kosso, and in Swahili as mdobore or mlozilozi. Its closest relative is the Afromontane genus LeucosideaSynonyms of the species include Banksia abyssinicaBrayera anthelminticaHagenia abyssinica var. viridifolia and Hagenia anthelmintica.

Description

Kosso-2.jpg

It is a tree up to 20 m in height, with a short trunk, thick branches, and thick, peeling bark. The leaves are up to 40 cm long, compound with 7-13 leaflets, each leaflet about 10 cm long with a finely serrated margin, green above, silvery-haired below. The flowers are white to orange-buff or pinkish-red, produced in panicles 30–60 cm long.

It is generally found from 2000–3000 m elevation, in areas receiving 1000–1500 mm of rainfall annually. It can be found growing in mixed afromontane forest with PodocarpusAfrocarpus, and other trees, and in drier afromontane forests and woodlands where Hagenia is dominant, or in mixed stands of Hagenia and Juniperus procera. It is often found near the upper limit of forest growth, giving way to giant heather zones above it.

Hagenia is used as a food plant by the larvae of some Lepidoptera species including turnip moth.


This article uses material from the Wikipedia article
 Metasyntactic variable, which is released under the 
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