Uapaca kirkiana Müll.Arg.

Species

Angiosperms > Malpighiales > Phyllanthaceae > Uapaca

Characteristics

Leaf blades (7)10–27(30) × (5)7–17 cm, broadly obovate to suborbicular-obovate, saddle-shaped, rounded or retuse at the apex, attenuate to rounded-cuneate at the base, entire or undulate-sinuate, usually thickly coriaceous, glabrous above, usually ferrugineous crisped-puberulous and minutely glandular-lepidote beneath, sometimes glabrescent, dull mid-to dark green above, paler beneath, midrib often pale yellowish-green; lateral nerves in 12–24 pairs, sometimes almost perpendicular to the midrib, not prominent or slightly impressed above, prominent beneath, subcraspedodromous, interstititials rarely present, tertiary nerves subparallel.
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A small tree. It grows 5-6 m high. It can be 13 m high. It has a rounded crown. The bark is dark grey and rough. The leaves are scattered or clustered at the tips of branches. They are oval and 11 cm long by 11 cm wide. They are thickly leathery. The upper surface is dark green and shiny. The lower surface has rust coloured woolly hairs. The male and female flowers are greenish-yellow. The fruit is round and rusty-yellow. They are 3-4 cm across. They are fleshy with a rather hard skin. The flesh is edible.
Female flower: calyx 3 mm in diameter, shallowly cupular, 5–8-lobed, the lobes 0.5 mm long, broadly triangular; ovary 3–4 × 3–4 mm, subglobose, 4-locular, densely ferrugineous-tomentose; styles 4, 3 mm long, multifid-flabelliform, the segments oblong, rounded, flattened, shallowly rugulose, abaxially puberulous, stigmatic surface glabrous.
A much-branched evergreen tree up to 12 m high, with a wide spreading rounded crown and a short clear bole (usually up to c. 1–2 m) up to c. 30 cm d.b.h.; bark striated to longitudinally fissured and finely transversely cracked or reticulate, corky, brittle, dark grey or blackish, occasionally exuding a viscous transparent fluid.
Fruits 4 × 4 cm (fresh), 3 × 3 cm (dried), subglobose to imperceptibly 4-lobed, smooth, reddish-brown or greenish at first, later becoming orange-yellow. Pyrenes 4, 2 × 1.1–1.2 × 0.8 cm, strongly carinate, bisulcate, apiculate, tricuspidate-emarginate at the base, lateral lobes smooth, entire.
Male peduncles 0.7–2 cm long, sometimes 1–2-bracteolate; inflorescence bracts (5)7–11, 5–7 × 3–5 mm, broadly elliptic or elliptic-obovate, the outer pubescent without, the inner mostly glabrous, pale yellow or whitish; head (5)7–8 mm in diameter.
Female peduncles 4–5 mm long, extending to c. 1 cm and thickening in fruit, 2-bracteolate, minutely lepidote, the bracteoles ferrugineous crisped-puberulous; bracts more or less as in the male.
Male flowers: calyx lobes 4–5, 1 mm long, acute or bifid, glabrous; stamens 4, filaments 1 mm long, flattened, anthers 1 × 1 mm, yellow; pistillode 1.5 mm high, infundibuliform, pubescent.
Young twigs 0.4–1 cm in diameter, fairly stout, evenly to densely crisped-puberulous or crisped-pubescent.
Leaves subsessile to shortly-petiolate, petioles 0.5–2(4.5) cm long, stout.
Seeds 1.5 × 0.8 × 0.5 cm, resembling the pyrenes in shape, brown.
Inflorescences usually borne for 15–30 cm below the leaves.
Stipules 5 mm long, filiform, pubescent, soon falling.
Wood somewhat pulpy, reddish.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality dioecy
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 12.0
Root system -
Rooting depth (meter) 1.35
Root diameter (meter) -
Flower color
Blooming months -
Fruit color
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

A tropical plant. It grows in the lowlands and the highlands. It occurs at medium altitudes in open woodland. It can be dominant on gravelly soils. It grows between 720-1,950 m above sea level. It grows in areas with an annual rainfall between 500-1,300 mm. It needs a temperature in the range 14°-29°C. It can grow in arid places. It grows in Miombo woodland in Africa.
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Lowland forest, secondary miombo woodland such as clearing and gaps, and open woodland. Grows in well-drained escarpments, with infertile sand or gravel soils of acidic reaction.
Light 4-9
Soil humidity 4-6
Soil texture 3-6
Soil acidity -
Soil nutriment -
Hardiness (USDA) 10-12

Usage

The flesh of the fruit is eaten. The dried fruit have a toffee like flavour. The fruit are used for jam. It can be used for cakes that are fried and eaten. The juice of the fruit is mixed with sorghum meal to form a porridge. They are fermented into wine.
Uses animal food charcoal dye environmental use fodder food fuel gene source material medicinal ornamental poison social use timber wood
Edible fruits
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Plants can be grown from seeds. The seeds need to be planted fresh. It can be grown from root suckers. It can be cut back and will re-grow. When fertilized or manured, survival and early growth of the tree is reduced. It can be grown by grafting.
Mode cuttings seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) 18 - 24
Size -
Vigor -
Productivity -

Images

Uapaca kirkiana unspecified picture

Distribution

Uapaca kirkiana world distribution map, present in Angola, Burkina Faso, Mozambique, Tanzania, United Republic of, Zambia, and Zimbabwe

Conservation status

Uapaca kirkiana threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:358136-1
WFO ID wfo-0000329049
COL ID 7DBX9
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Uapaca albida Uapaca dubia Uapaca goetzei Uapaca kirkiana Uapaca greenwayi Uapaca kirkiana var. dubia Uapaca kirkiana var. goetzei Uapaca kirkiana var. kwangoensis Uapaca kirkiana var. sessilifolia Uapaca homblei Uapaca munamensis Uapaca neomasuku