Coastal Coral Tree
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''Erythrina caffra'', the coast
coral tree ''Erythrina'' is a genus of plants in the pea family, Fabaceae. It contains about 130 species, which are distributed in tropical and subtropical regions worldwide. They are trees, with the larger species growing up to in height. The generic ...
or African coral tree, is a tree native to southeastern
Africa Africa is the world's second-largest and second-most populous continent, after Asia in both cases. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 6% of Earth's total surface area ...
, which is often cultivated and has introduced populations in California and
India India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the so ...
. All the 17 species of coral tree in the genus ''Erythrina'' are collectively considered the official tree of
Los Angeles Los Angeles ( ; es, Los Ángeles, link=no , ), often referred to by its initials L.A., is the largest city in the state of California and the second most populous city in the United States after New York City, as well as one of the world' ...
, California in the
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...
.


Description

''Erythrina caffra'' is a medium to large deciduous tree. It grows in coastal bushes and riverine forests along the south eastern coast of
South Africa South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. It is bounded to the south by of coastline that stretch along the South Atlantic and Indian Oceans; to the north by the neighbouring countri ...
and up into Zululand.


Leaves

The compound leaves are made up of three leaflets. Each leaflet is broadly ovate to elliptical. The leaflets do not have prickles and are hairless.


Flowers

The flowers are made up of a main petal and four small petals. The main petal curves back to expose the stamens. The flower colour is warm red to scarlet. This is one of the main differences between ''Erythrina caffra'' and ''
Erythrina lysistemon ''Erythrina lysistemon'' is a species of deciduous tree in the pea family, Fabaceae, that is native to South Africa. Common names include common coral-tree, lucky bean tree, umsintsi (Xhosa), muvhale (Venda), mophete (Tswana), koraalboom of kann ...
''. The flowers form stalked axillary racemes up to 100mm long.


Trunk

The bark is reasonably smooth with thorns every now and then. The younger the branch the sharper the thorns.


Gallery

Image:Erythrina caffra, KZN NBT, b.jpg, Close-up view, showing leaf arrangement, shape and size Image:Erythrina caffra 01 ies.jpg, View of trunk showing prickles Image:Erythrina Caffra flower.JPG, Inflorescence Image:1TIE.png,
Trypsin inhibitor A trypsin inhibitor (TI) is a protein and a type of serine protease inhibitor (serpin) that reduces the biological activity of trypsin by controlling the activation and catalytic reactions of proteins. Trypsin is an enzyme involved in the breakdown ...
isolated from the seeds of Erythrina caffra


References


External links

* caffra {{Phaseoleae-stub