Ricinodendron heudelotii (Baill.) Pierre ex Heckel

Species

Angiosperms > Malpighiales > Euphorbiaceae > Ricinodendron

Characteristics

Deciduous tree up to 40 m. high; trunk up to 25 m. high, and up to 1.5 m. in diameter 1.5 m. from the ground.. Bark rough, scaling, dark grey.. Wood soft, white, perishable.. Twigs up to 1 cm. diameter, sparsely lenticellate, densely ferruginous stellate-pubescent at first, soon glabrescent, with a thick pith.. Leaf-segments 3–7, elliptic-lanceolate to broadly elliptic, the median ones 10–30 cm. long, 5–15 cm. wide, the laterals somewhat smaller, long-acuminate to caudate-acuminate, acute, attenuate at base into the usually scarcely distinct pseudopetiolule, subentire or shallowly glandular-toothed, lateral nerves 15–25 pairs, glabrous or subglabrous above, subglabrous or initially or persistently densely silvery stellate-tomentose beneath, membranous.. Petiole 10–40 cm. long, with (0–)1–2 discoid glands ± halfway along on the adaxial surface, stellate-pubescent at first, soon glabrescent.. Stipules broadly flabelliform, 2–3(–5) cm. wide, with gland-tipped teeth 2–5 mm. long, palmately nerved, stellate-pubescent at first, soon glabrescent, persistent.. Male inflorescences 15–30(–40) cm. long, densely stellate-pubescent at first, soon glabrescent except in the axils of the branches; bracts subulate to linear, 3–7 mm. long, those in the lower part of the panicle, or occasionally all of them, with 1–3 globose, dark green glands on either side.. Male flowers: pedicels 1–2 mm. long, pubescent; sepals ovate, 3–4 mm. long, 2–3 mm. wide, pubescent without and within, greenish brown; petals ovate, 5–6 mm. long, 2–3 mm. wide, glabrous except for the pilose lower free margins, white, greenish white or pale yellow-green; disc-glands 4–6, ovate-suborbicular, yellow; stamens (7–)10–14, filaments inflexed in bud, later straightening and then 6 mm. long, anthers 0.75 mm. long.. Female inflorescences 6–10 cm. long, more robust than ♂; indumentum and bracts as in ♂.. Female flowers: pedicels 4–6 mm. long, pubescent; sepals and petals similar to those of ♂ but larger; disc crenellate, yellow-green; ovary 2–3-locular, globose, 5 mm. diameter, densely stellate-pubescent; styles 2–3, 4 mm. long.. Fruits 2–3-locular, bilobed or trilobed, 2–3-seeded, occasionally unlobed if one seed aborts, 2.5–3.5 cm. long, and 4–5 cm. wide when fresh, somewhat smaller when dried, glabrescent, green at first, becoming black when ripe.. Seeds compressed-subglobose, 1.3–1.7 cm. diameter, reddish brown.
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A tree. It grows 40 m high. The trunk is straight and 2.7 m across. The bark is grey and smooth. It loses its leaves during the dry season. The leaves are like fingers on a hand and alternate. There are 3-5 leaflets and these are 6-30 cm long by 3-15 cm wide. Male and female flowers are on separate trees. There are 5 petals and 5 sepals and they are united in a tube. The fruit are small and green. They are 4 cm across. They have 2 lobes. There are 1-2 nuts.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention deciduous
Sexuality -
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 40.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

A tropical plant. It is common in secondary forest. It grows between 200-500 m altitude. It requires 1,000 mm of rainfall but can grow in areas with 10,000 mm of rain per year. It needs light. It requires a temperature between 18-32°C. It needs free draining acid soils.
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Fringing, deciduous and secondary forests, common throughout the semi-dry wooded-savannah zone. Rain forests, but is typical of the more open, secondary formations and is common on abandoned farmland.
Light 7-9
Soil humidity 4-6
Soil texture 3-6
Soil acidity -
Soil nutriment -
Hardiness (USDA) 10-12

Usage

The dried kernels are ground and used in stews or eaten as a relish. They can be eaten raw or roasted. The nuts also yield an edible oil. The leaves are cooked as a vegetable. The kernels can be stored for many months.
Uses animal food coffee substitute dye environmental use food gene source material medicinal oil ornamental social use timber wood
Edible fruits leaves nuts seeds
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Plants are grown from seed. Seed germinate after 3-6 weeks. It can also be grown from leafy stem cutting, layering or side grafting. Trees can regenerate from the stump. (Seedlings are destroyed by a psyllid in Cameroon)
Mode cuttings seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment soaking
Minimum temperature (C°) -
Optimum temperature (C°) 20 - 30
Size -
Vigor -
Productivity -

Images

Ricinodendron heudelotii unspecified picture

Distribution

Ricinodendron heudelotii world distribution map, present in Angola, Benin, Central African Republic, Congo, Cabo Verde, Gabon, Ghana, Guinea, Guinea-Bissau, Kenya, Liberia, Mozambique, Nigeria, Sudan, Senegal, Sierra Leone, Tanzania, United Republic of, and Uganda

Conservation status

Ricinodendron heudelotii threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:1016790-1
WFO ID wfo-0000297055
COL ID 4T248
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Jatropha heudelotii Ricinodendron heudelotii

Lower taxons

Ricinodendron heudelotii subsp. africanum Ricinodendron heudelotii subsp. heudelotii Ricinodendron heudelotii var. tomentellum