Hyphaene coriacea Gaertn.

Doum palm (en)

Species

Angiosperms > Arecales > Arecaceae > Hyphaene

Characteristics

Clustering or solitary palm, occasionally already mature while still a rosette, tending to form shrubby thickets with decumbent trunks, rarely more than 5 m. tall and very rarely tree-like.. Stems suckering, hence building up clumps of uneven aged trunks; dichotomizing once or twice, rarely more, when engulfed by sand dunes the dichotomies close, producing a clump of crowns on the surface of the dune; stems grey, to 25 cm. in diameter, usually less, usually covered by long-persistent leaf-bases, occasionally destroyed by fire, leaving very close leaf-scars.. Crown consisting of 8–15 green leaves; petiole to 70 cm. long, often much shorter, to 3 cm. wide, widening at the very base, the triangular cleft ± 20 cm. long; petiole greyish green, armed throughout its length with distally pointing black triangular spines to 1 cm. long and rich brown scales and thin to very dense wax, especially when young; hastula regular or very asymmetrical. Lamina strongly costapalmate, the costa 30–80 cm. long, usually curved, grey-green to very glaucous, with a dense covering of wax in young leaves especially in sand dune forms, and scattered black scales; lamina divided to 1/2 the radius in mid-leaf, to 3/4 radius near the edge, into 15–20 segments, to 3.5 cm. broad, rather stiff, rarely exceeding 40 cm. long.. Male inflorescence to 1 m., pendulous or arching with 5–7 partial inflorescences; peduncle ± 3 cm. in diameter; peduncular bracts ± 20 cm. long, covered in abundant brown hairs and white wax; rachillae 1–3 in a group, slender, rarely exceeding 15 cm. long by 0.7 cm. wide; rachilla-bracts 1 mm. high by 4 mm. wide, exposed at anthesis.. Male flowers with sepals very narrow, ± 3 mm. long by 0.5 mm. wide; corolla stalk ± 2 mm. long, the lobes somewhat spathulate, 3 mm. long by 1.5 mm. wide; filaments ± 2 mm. long, anthers ± 1.5 mm. long, bright yellow.. Female inflorescence as the ♂, but rachillae usually 1–2 only in each partial inflorescence; pits ± 4 × 7 mm. at anthesis.. Female flower with pedicel ± 3 mm. long by 1.5 mm. wide at anthesis; sepals and petals similar, ± 2 mm. long by 2 mm. wide at the base, triangular; ovary bright green, ± 2 mm. in diameter.. Fruit extremely variable in size and shape, from ovoid and pyriform to extreme, cottage-loaf shaped, rarely 6 cm. long and 4 cm. wide at the apex, usually much less and occasionally as small as 3 × 2.5 cm., usually with a distinct ridge on one side, and a distinct widening toward the apex, the epicarp generally matt or very finely dimpled, without prominent warts or pockmarks, pale green when immature, ripening mid to dark brown; mesocarp ± 4 mm. thick, faintly aromatic, dark brown; endocarp ± 3 mm. thick except at the apical pore.. Seed somewhat polyhedral, conforming to the shape of the endocarp; endosperm ± 5 mm. thick.. Figs. 3/3, (p. 25), 4 and 5 (p. 32).
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A dwarf branched palm. It only branches slightly. It can grow 10 m high. The stem is usually covered with the old leaf bases. The crown is fairly small. The leaves are grey-green, deeply divided and fan shaped. The fruit are pear shaped. They have distinctly narrowed bases. The fruit are drier and smaller than Hyphaene thebaica. They are brown when ripe and about 5 cm long. They have a thin layer of edible flesh.
Plant forming dense, low clumps or otherwise a tree, up to 9 m high. Leaves fan-shaped, grey-green. Fruit hard, shiny, dark brown, up to 63 mm in diameter, often like short, fat pears in shape.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality dioecy
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 5.5
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

A tropical plant. It grows in the coastal regions of East Africa. In Kenya it grows from sea level to 300 m altitude. It grows along stream banks and in low lying areas. It is usually in areas with a high water table. It suits temperate regions as well as the tropics. It requires well drained soil in a sunny position. It can grow on sand dunes. It suits hardiness zones 10-12. Adelaide Botanical Gardens. In Townsville Queens BG.
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Hot, dry areas in poor or exhausted soils with impeded drainage. Often seen growing near but not on the banks of rivers, it is also common in coastal sands.
Light 7-9
Soil humidity 1-5
Soil texture 3-4
Soil acidity -
Soil nutriment -
Hardiness (USDA) 10-11

Usage

The pulp of the fruit is eaten. It is also used to make wine. The palm heart is used as a vegetable. The sap is tapped to make an alcoholic drink. This is called ilala wine or busulu wine. (The tapping method kills the tree). Caution: Alcohol is a cause of cancer. The fibrous layer around the nut is eaten. The kernel of the nut is eaten. The milk from the seed is eaten. The shoots of the germinating seed are eaten as a vegetable.
Uses animal food dye environmental use fiber food gene source material medicinal
Edible fruits nuts saps seeds shoots stems
Therapeutic use Intoxicant (unspecified), Excrescence (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Plants are grown from seeds. The fleshy layer is removed. Seeds are slow to germinate and breaking the hard seed coat helps germination.
Mode seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) 1
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Hyphaene coriacea unspecified picture
Hyphaene coriacea unspecified picture

Distribution

Hyphaene coriacea world distribution map, present in Ethiopia, Kenya, Madagascar, Mozambique, Somalia, Tanzania, United Republic of, and South Africa

Conservation status

Hyphaene coriacea threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:667492-1
WFO ID wfo-0000216227
COL ID 3NRJR
BDTFX ID -
INPN ID 789575
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Hyphaene baronii Hyphaene beccariana Hyphaene hildebrandtii Hyphaene oblonga Hyphaene parvula Hyphaene pileata Hyphaene coriacea Hyphaene natalensis Hyphaene pleuropoda Hyphaene pyrifera Hyphaene shatan Hyphaene spaerulifera Hyphaene tetragonoides Hyphaene turbinata Hyphaene wendlandii Corypha africana Chamaeriphes shatan Chamaeriphes turbinata Chamaeriphes coriacea Hyphaene pyrifera var. arenicola Hyphaene pyrifera var. margaritensis Hyphaene spaerulifera var. gosciaensis Hyphaene coriacea var. minor Hyphaene turbinata var. ansata Hyphaene pyrifera var. gosciaensis