''Terminalia sericea'' is a

species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...

deciduous In the fields of horticulture and botany, the term deciduous () means "falling off at maturity" and "tending to fall off", in reference to trees and shrubs that seasonally shed Leaf, leaves, usually in the autumn; to the shedding of petals, aft ...

tree of the

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

Terminalia Terminalia may refer to: * Terminalia (festival) Terminalia () was an ancient Roman festival in honour of the god Terminus, who presided over boundaries. His statue was merely a stone or post stuck in the ground to distinguish between propert ...

'' that is native to southern Africa. Its common names include clusterleaf, silver cluster-leaf or silver terminalia in English, vaalboom in

Afrikaans Afrikaans is a West Germanic languages, West Germanic language spoken in South Africa, Namibia and to a lesser extent Botswana, Zambia, Zimbabwe and also Argentina where there is a group in Sarmiento, Chubut, Sarmiento that speaks the Pat ...

and mususu in

Venda Venda ( ), officially the Republic of Venda (; ), was a Bantustan in northern South Africa. It was fairly close to the South African border with Zimbabwe to the north, while, to the south and east, it shared a long border with another black hom ...

Etymology

The

generic Generic or generics may refer to: In business * Generic term, a common name used for a range or class of similar things not protected by trademark * Generic brand, a brand for a product that does not have an associated brand or trademark, other ...

name is derived from the

Latin Latin ( or ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken by the Latins (Italic tribe), Latins in Latium (now known as Lazio), the lower Tiber area aroun ...

''terminus'' meaning "boundary" and describes the concentration of the foliage at the very end of the twigs. The

specific name Specific name may refer to: * in Database management systems, a system-assigned name that is unique within a particular database In taxonomy, either of these two meanings, each with its own set of rules: * Specific name (botany), the two-part (bino ...

"sericea" comes from the Latin ''sericatus'' meaning "clothed in silken hair" and describes the downy foliage.

Description

The silver cluster-leaf grows to a height of about in woodland but isolated trees can be up to tall. The bark is a reddish or greyish brown colour and peels away in strips. The bluish-green leaves tend to be clustered at the tips of the branches. They are ovate with entire margins and both the upper and lower surfaces are clothed in silvery hairs. The flowers are white and are borne in short axilliary spikes. They have an unpleasant smell and may be pollinated by flies. The fruit are winged nuts containing a single seed and turn a darker pink colour as they ripen. They may remain attached to the branch for a year and are dispersed by the wind. They sometimes become contorted and hairy as a result of the activities of

parasitic Parasitism is a close relationship between species, where one organism, the parasite, lives (at least some of the time) on or inside another organism, the host, causing it some harm, and is adapted structurally to this way of life. The ent ...

insect larvae.

Distribution and habitat

The silver cluster-leaf is

endemic Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ...

to Africa from Tanzania and the Democratic Republic of Congo southwards to South Africa. It grows in open mixed woodland on sandy soils. It is often found growing with miombo (''

Brachystegia ''Brachystegia'' is a genus of tree of the subfamily Detarioideae that is native to tropical Africa. Trees of the genus are commonly known as miombo, and are dominant in the miombo woodlands of central and southern tropical Africa. The Zambezia ...

spp.''),

mopane ''Colophospermum mopane'', commonly called mopane, mopani, butterfly tree, turpentine tree, or balsam tree, is a tree in the legume family (Fabaceae), that grows in hot, dry, low-lying areas, in elevation, in parts of Southern Africa. The tree ...

(''Colophospermum mopane''), ''

Acacia ''Acacia'', commonly known as wattles or acacias, is a genus of about of shrubs and trees in the subfamily Mimosoideae of the pea family Fabaceae. Initially, it comprised a group of plant species native to Africa, South America, and Austral ...

spp.'' and bush willows (''

Combretum ''Combretum'', the bushwillows or combretums, make up the type genus of the family Combretaceae. The genus comprises about 272 species of trees and shrubs, most of which are native to Tropics, tropical and southern Africa, about 5 to Madagascar ...

spp.''). It is often one of the dominant species in mixed woodland.

Requirements

The silver cluster-leaf grows readily from seed. It is a pioneer species, easily becoming established in previously unwooded areas and may form dense shrubby thickets. It is tolerant of waterlogged soils and of drought conditions and fairly tolerant of saline soils. It needs full light to grow well and tends to shade out weeds so its presence helps

climax species Climax species, also called late seral, late-successional, K-selected or equilibrium species, are plant species that can germinate and grow with limited resources; e.g., they need heat exposure or low water availability. They are the species wi ...

to become established. It has been used in land improvement and to control erosion. The leaves are shed in autumn and flowering takes place after the rainy season has started and the new foliage developed. Flowering may be reduced after a bush fire.

Uses

The timber of the silver cluster-leaf is yellow and hard-grained and is resistant to attack by wood-boring insects and

termite Termites are a group of detritivore, detritophagous Eusociality, eusocial cockroaches which consume a variety of Detritus, decaying plant material, generally in the form of wood, Plant litter, leaf litter, and Humus, soil humus. They are dist ...

s. It is used in building construction and to make tool handles, furniture and fencing posts. It is used for firewood and the making of

charcoal Charcoal is a lightweight black carbon residue produced by strongly heating wood (or other animal and plant materials) in minimal oxygen to remove all water and volatile constituents. In the traditional version of this pyrolysis process, ca ...

. The bark has been used to make ropes and is also pounded to produce a substance for waterproofing boats. The leaves are eaten by cattle during the dry season when grass becomes unavailable. In traditional medicine, both leaves and roots have been used as a remedy for stomach ailments and a concoction of the roots for treating

bilharzia Schistosomiasis, also known as snail fever, bilharzia, and Katayama fever is a neglected tropical disease caused by parasitic flatworms called schistosomes. It affects both humans and animals. It affects the urinary tract or the intestines ...

diarrhoea Diarrhea (American English), also spelled diarrhoea or diarrhœa (British English), is the condition of having at least three loose, liquid, or watery bowel movements in a day. It often lasts for a few days and can result in dehydration d ...

and

pneumonia Pneumonia is an Inflammation, inflammatory condition of the lung primarily affecting the small air sacs known as Pulmonary alveolus, alveoli. Symptoms typically include some combination of Cough#Classification, productive or dry cough, ches ...

. The bark is used against

diabetes Diabetes mellitus, commonly known as diabetes, is a group of common endocrine diseases characterized by sustained high blood sugar levels. Diabetes is due to either the pancreas not producing enough of the hormone insulin, or the cells of th ...

and to dress wounds.

References

{{Taxonbar, from=Q7702777 sericea Flora of Africa