Brachystegia floribunda Benth.

Species

Angiosperms > Fabales > Fabaceae > Brachystegia

Characteristics

Tree (4–)6–12(–15) m. high; bark at first smooth, whitish or silvery-grey, becoming rather rough and darker (when burnt?), slowly shedding in irregular scales or completely to expose a pale grey finely muricate surface; crown at first narrow, erect-branched, finally spreading and irregularly rounded; mature foliage usually glaucous, usually bunched; leaves pendulous, fluttering in the slightest breeze.. Branchlets usually soon rusty.. Stipules free, linear to falcate-subfoliaceous, 0.5–2 cm. long, usually fugacious; auricle 0.. Leaves glabrous, with (2–)3–4 widely spaced pairs of leaflets, the distal pair usually the largest; petiole (1.5–)2–5(–7) cm. long, slender; rhachis (2.5–)3–8(–12) cm. long, slender, not (or very obscurely) channelled, without stipels or expansions; leaflets ovate or rhombic to falcate, (2–)3–8(–10) × (1–)2–3.5(–5) cm., obtuse to acute or acuminate, usually very oblique and rounded-or subcordate-cuneate at base; midrib subcentral; basal fanwise nerves (3–)4–5(–6); surfaces mat, concolorous, both equally reticulate with age.. Panicles usually conspicuous, often clustered, mainly on older wood or leafless branchlets (more rarely also terminal and then smaller), up to 10 × 8 cm., pubescent to tomentose with brown or rusty hairs.. Flowers greenish-white; bracteoles 4–6(–8) × 2.5–4(–5) mm.. Tepals 5(–7), usually all sepaloid but usually narrow and then scarcely imbricate; outer 5(–7), up to 3 × 1 mm., free, shortly ciliate; inner 0 or 1–2, narrow.. Stamens ± 10, usually free, filaments 8–10 mm. long.. Ovary 2.5–3 × 1 mm., ± densely crispate-setose; style 7–8 mm. long, stigma small.. Pod thinly woody, up to 12.5 × 4 cm., pendulous, smooth, blue-black to brownish-purple, ± pruinose over a mat, minutely papillose surface; sutural wings spreading, each 3–4 mm. wide.. Fig. 35/1, p. 160.
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Leaves 7–18 cm long; petioles 20–70 mm long; rachis shallowly canaliculate above, margins neither raised not winged; leaflets in 2–5 widely spaced pairs, increasing in size distally, 2–3 times longer than broad, glabrous, proximal leaflet pairs 4–10 × 1.5–4 cm, distal ones 6–12.5 × 2.5–5 cm, ovate, oblong, lanceolate, elliptic or falcate, acuminate, acute or retuse at the apex, obliquely cuneate or truncate at the base, midvein central, (3)4–5(6) secondary veins from the proximal leaflet base.
Tree to 12 m tall; bark shallowly fissured longitudinally or coarsely reticulate, flaking in thick rectangular scales, dark grey.
Inflorescences in terminal and/or axillary panicles to 8 cm long, often on the old wood; bracts up to 3 × 3 mm, ovate.
Flowers up to 4–5 × 3–3.5 mm; pedicels up to 2.5 mm long; bracteoles 5–6 × 3–4 mm, obovate or circular.
Stipules early caducous, 10–30 × 1–8 mm, lanceolate, subfoliaceous, free; auricles absent.
Sepals 5, 2–3 × 1–2 mm, ovate to triangular, imbricate, sparsely ciliate on the margins.
Pods 8–14 × 2.5–4.5 mm, oblong to obovate, deep brown, with suberect ventral flanges.
Stamens 10, united to 1–2 mm at the base; filaments 8–10 mm long.
Ovary 2.5–3 × 1–2 mm, densely pubescent, up to 7-ovulate.
Seeds up to 8, 10–20 × 10–15 mm, oblong or circular.
Petals 1–2, up to 2 × 1 mm, filiform or linear.
Dormant axillary buds ovoid or globose.
Young branchlets pubescent or glabrous.
Life form
Growth form tree
Growth support -
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 9.0 - 12.0
Root system -
Rooting depth (meter) 2.9
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-12

Usage

Uses animal food fuel material medicinal wood
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Brachystegia floribunda world distribution map, present in Angola, Mozambique, Malawi, Tanzania, United Republic of, and Zambia

Identifiers

LSID urn:lsid:ipni.org:names:482208-1
WFO ID wfo-0000213744
COL ID N24V
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Brachystegia floribunda Brachystegia nchangensis Brachystegia polyantha