Pterocarpus lucens Lepr. ex Guill. & Perr.

Species

Angiosperms > Fabales > Fabaceae > Pterocarpus

Characteristics

Deciduous tree up to 7.5–18 m. tall, generally with a straight trunk and spreading crown; bark usually rough, grey-brown; slash yellowish, exuding red gum.. Branchlets appressed pubescent, soon glabrescent.. Leaves (6.5–)10–28 cm. long, compound or rarely (and not in East Africa) some or all 1-foliolate; stipules linear, 2–3 mm. long, early caducous; lateral leaflets (0–)1–5 on either side, mostly subopposite, broadly lanceolate to ovate or elliptic, up to 4–10 cm. long, 2.4–4.8 cm. wide, narrowed or acuminate to the bluntly pointed or emarginate tip, broadly cuneate or rounded at base, bright green above, chartaceous, glabrous or rapidly glabrescent above, appressed puberulous beneath; primary lateral nerves curved-ascending, ± 12–18 on either side, looped near margin; venation laxly reticulate, prominent on both surfaces.. Racemes in axils of current and fallen leaves, 6–20(–30) cm. long, rather few-to many-flowered; bracts small, fugaceous; bracteoles at top of the slender 10–18 mm. long pedicel, very small, fugaceous.. Calyx shortly lobed, 4–6 mm. long, with hairs at mouth of the tube inside, otherwise glabrous, often coloured with reddish gum-exudate.. Corolla 10–14 mm. long, yellow, fragrant; standard broadly obovate; wings broadly expanded, enveloping keel and nearly as long as the standard.. Fruit ± semi-orbicular, with a relatively narrow coriaceous wing produced slightly to the subterminal style-base and partially decurrent on to the (0.5–)1–2 cm. long stipe, 4.5–6.5 cm. long, 2–3 cm. wide, glabrous, laxly venose.. Fig. 16/1, 2, p. 83.
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A medium-sized tree with a strong tendency to become shrubby; south of the Zambezi River reaching, at its best, 7-10 m in height; occurring in low-altitude woodland, often in deep, sandy soils; sometimes forming thickets. Bark: Smooth, pale grey, mottled, thin, tending to flake like the bark of the guava tree Psidium guajava; branchlets sometimes spine-tipped. Leaves: With 1-4 pairs of opposite to sub-opposite leaflets plus the terminal one; leaflets ovate to oval, sometimes oblanceolate, rather small, usually only 2-3 x 1-2 cm, but occasionally up to 8 x 5 cm, light green, drooping; apex broadly tapering, rounded or notched, asymmetric; base tapering, asymmetric; margin entire; petiolules and petiole present. Flowers: Pale yellow, pea-shaped, sweetly scented, in long, slender, lax, delicate sprays 7-22 cm long, before or with the new leaves; the flowering period is short, often only a few days. Fruit: A small, oval, flattened pod, up to 5 x 3 cm, with a conspicuous swelling over the seed-case and surrounded by a hard membranous wing, apex rounded, asymmetric, base tapering, pale creamy brown, occasionally with a reddish tinge, indehiscent.
A medium sized tree. It often becomes shrubby. It grows 7-10 m high. The bark is smooth and pale grey and flakes like guava bark. The leaves are made up of 2-4 pairs of opposite leaflets and one leaflet at the end. The leaflets are small and oval. They are 2-3 cm long by 1-2 cm wide. Sometimes they are larger. They are light green and droop. The base is unequal. The flowers are pale yellow and pea-shaped. They are in long slender sprays. These are 7-22 cm long. The fruit is a small oval flattened pod. It is 5 cm long by 3 cm wide. It has a swelling over the seed case. There is a hard wing like a membrane.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination entomogamy
Spread -
Mature width (meter) -
Mature height (meter) 7.5 - 12.0
Root system -
Rooting depth (meter) 4.7
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer rhizobia
Photosynthetic pathway c3

Environment

A tropical plant. It grows in low altitude woodland. It is often on deep, sandy soils. It grows in dry savannah between the Sahara and Sahel in West Africa. It needs between 300-700 mm of rain each year. It can grow in arid places.
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Savannah, (dry) wooded grassland, deciduous woodland with Combretum, particularly on rocky outcrops; marigot, wet but well-drained sites, skeletal soils, lateritic depressions; locally gregarious; at elevations of 550-1,520 metres.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-12

Usage

The young leaves are used as a vegetable. They are also used in sauces.
Uses animal food dye environmental use fodder food forage fuel gene source invertebrate food material medicinal timber wood
Edible leaves
Therapeutic use Dysentery (unspecified), Stomach (unspecified), Astringent (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by seedlings. Seeds needs scarification and soaking.
Mode seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment scarification soaking
Minimum temperature (C°) -
Optimum temperature (C°) 15 - 32
Size -
Vigor -
Productivity -

Distribution

Pterocarpus lucens world distribution map, present in Angola, Central African Republic, Côte d'Ivoire, Cameroon, Ethiopia, Ghana, Guinea, Mali, Niger, Nigeria, Sudan, Senegal, Chad, Uganda, and South Africa

Conservation status

Pterocarpus lucens threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:516496-1
WFO ID wfo-0000172748
COL ID 4PVJB
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Pterocarpus abyssinicus Pterocarpus lucens Dalbergia praecox Pterocarpus abyssinicus Pterocarpus simplicifolius Lingoum simplicifolium Lingoum lucens Pterocarpus lucens var. simplicifolius Pterocarpus lucens subsp. lucens

Lower taxons

Pterocarpus lucens subsp. antunesii