Rauvolfia caffra Sond.

Species

Angiosperms > Gentianales > Apocynaceae > Rauvolfia

Characteristics

Shrub or tree 2–40 m high; trunk 5–100 cm in diameter; bark smooth and lenticellate or rough and corky, longitudinally fissured, grey to brown; wood soft; branches and branchlets brown, lenticellate, often 4–5-angled or-winged, with conspicuous leaf scars.. Leaves in whorls of 3–6, confined to the apices of branches, petiolate; blade narrowly obovate to elliptic, 1.8–60(–70) cm long, 0.8–15(–19) cm wide, subacute to acute at the apex, cuneate or attenuate at the base, sometimes decurrent into the petiole, glossy, glabrous; 12–35(–45) pairs of secondary veins; petiole 0–60 mm long, glabrous.. Inflorescence congested, on ultimate branches only, up to 450-flowered; peduncle 5.8–13.5 cm long, glabrous; pedicels 0.1–2 mm long, glabrous.. Flowers fragrant; sepals ovate, 0.5–1.3 mm long, 0.3–1.5 mm wide, obtuse at the apex, glabrous, sometimes slightly ciliate; corolla hypocrateriform, (greenish) white; tube broadly cylindrical, 3.2–5.5 mm long, densely setose in the mouth and at base of lobes; lobes ovate or obovate, 0.6–1.6 mm long, 0.8–1.6 mm wide; stamens inserted 1.9–4.2 mm above the corolla base; disk 0.2–0.7 mm high, annular or cupular; pistil 1.2–3.8 mm long; ovary of 2 free or partly fused carpels, globose to obovoid, glabrous; style 0.6–3.2 mm longr.. Fruit dark red or black, often lenticellate, syncarpous when both carpels develop, obcordate, bilobed, 10–30 mm long, 7–23 mm in diameter; when only one carpel developes, subglobose to ellipsoid and 5–20 mm in diameter; seeds 7–13 mm long.. Fig. 21 (p. 62).
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Tree 7-16 m high and up to 1.5 m in diameter, with all parts glabrous; bark smooth; sap watery, bitter. Leaves in whorls of 3-5, often unequal, lanceolate, long oblong or oblanceolate, acute to acuminate, long cuneate at the base, 12-28 cm long and 2.5-6 cm broad, dark green and shiny above, paler below, thinly coriaceous; secondary nerves 20-30 on each side, spreading at a wide angle; petiole 1-3.5 cm long; axillary glands forming a dense fringe. Stipules 0. Inflorescence much branched with dense cymes at the ends of secondary or tertiary branchlets of large umbels: peduncle 2-6 cm long; bracts minute. Flowers white, small, waxy; pedicels 1 mm long. Calyx cup-shaped, 1 mm long, 5-toothed or lobed. Corolla salver-shaped: tube cylindric to subcampanulate, thickened towards the apex, 3-4.5 mm long, mouth densely filled with whitish hairs; lobes ovate, 1 mm long. Stamens 5, inserted above the middle; anthers ovate, cordate, 0.5-1 mm long; filaments very short, terete. Disc cup-shaped, sinuate. Ovary of 2 carpels, connate in flowering stage, more or less fused in fruit or often only one developing; style terete, 1.5-2 mm long; stigma papillose, capitate, consisting of a thickened annular ring with a basal ±9 rim and a short, truncate, bilobed apex; ovules 51 mm each cell, collateral. Fruit drupaceous, subglobose to obovoid, at first green and smooth, becoming black and wrinkled when ripe. Seeds 1 or 2, ovoid, compressed, bony; cotyledons flat; endosperm thin, fleshy.
Medium to large tree, (2-)7-16(-20) m high; trunk stout, crown rounded. Leaves in whorls of 3-5, narrowly lanceolate, 120-280 x (25-)30-60 mm, apex acuminate, upper surface glossy, resinous; venation pronounced, colleters in axils. Inflorescences much-branched cymes; peduncles 20-60 mm long. Flowers salver-shaped, white. Corolla: tube 3.0-4.5 mm long, mouth with dense white hairs; lobes ovate, 1 mm long. Stamens with filaments short; anthers ovate, bases cordate. Circumgynoecial glandular disc cupular, sinuate. Gynoecium bicarpellate. Style head capitate, annular ring thickened. Flowering time July-Oct. Fruit a pair of small follicles, one by abortion, black and wrinkled when mature. Seeds (1)2 per locule.
A tree. It grows 4.5-6 m high and spreads 3-4.5 m wide. The bark if grey or brown and broken into small squares. The leaves are in rings of 3-6. They are simple and glossy. They are bright green above and dull green underneath. The leaves are 30 cm long. They have a white midrib. The flowers are white and in dense heads. These are at the ends of branches. The fruit is fleshy and almost round. They are green with white spots. They become black and wrinkled when mature. They have 1 or 2 seeds.
Leaves usually confined to the apices of the branchlets; petiole 0–60 mm. long, glabrous; lamina 1·8–50(70) x 0·8–15(19) cm., narrowly obovate to narrowly elliptic, subacute to acute at the apex, cuneate at the base, subcoriaceous to coriaceous, glossy glabrous, with 12–35(45) secondary veins on each side of the midrib.
Corolla hypocrateriform; tube white, greenish-or yellowish-white, 3–5·5 mm. long, inside pubescent from 1·5–4·5 mm. from the base to the lobes; lobes sometimes different from the tube in colour, white, greenish-or yellowish-white, 0·6–1·6 mm. long, ovate to obovate, inside pubescent at the base.
Pistil 1·2–3·8 mm. long; carpels 0·8–1·2 mm. long, glabrous; disk ring-shaped, 0·3–0·7 mm. high, glabrous; style 0·6–3·2 mm. long, glabrous; clavuncula 0·3–0·6 mm. long, often sparsely pubescent; stigma 0·1–0·2 mm. long, glabrous.
Fruits dark red, often lenticellate; when apocarpous only one carpel developing (sub-globose and 5–20 mm. in diam.); when syncarpous bilobed, 10–30 x 7–23 x 7–24 mm.
Bark smooth, lenticellate or rough and corky, longitudinally fissured, grey to brown; inner bark pale buff, granular; wood soft.
Stamens inserted 1·9–4·2 mm. above the base of the corolla tube; filaments 0·3–0·7 mm. long; anthers 0·6–1·2 mm. long.
Tree, 7-16 m high. Leaves in whorls of 3-5, 120-280 mm long. Fruit drupaceous, subglobose to obovoid. Flowers white.
Branches and branchlets brown, often 4–5-angular or-winged, with conspicuous leaf scars, lenticellate.
Inflorescences many-flowered, congested in ultimate branchings; peduncle 1·5–13·5 cm. long, glabrous.
Sepals 0·3–1·3 mm. long, triangular, glabrous.
Small tubular flowers in ample inflorescences.
Small to large tree up to 70 ft. high
Pedicels 0·1–2 mm. long, glabrous.
Seeds 7–13 x 4–10 x 2–4 mm.
Trunk 5–100 cm. in diam.
Tree up to 40 m. high.
Verticillate leaves
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) 3.0 - 4.5
Mature height (meter) 7.0 - 18.67
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 grows on the edge of forests and near rivers. In Malawi it grows from 650-1,700 m altitude. In Zimbabwe it grows between 840-1540 m above sea level. It suits hardiness zones 9-11.
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Rainforest, riverine forest, montane forest and old secondary forest, at elevations from sea-level up to 2,500 metres.
Light -
Soil humidity 8-10
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-12

Usage

The bark is put into beer to increase the flavour and strength. Caution: Several parts of this plant are very toxic.
Uses environmental use fiber food fuel material medicinal poison social use wood
Edible barks roots stems
Therapeutic use Endophthalmitis (leaf), Snake bites (leaf), Wounds and injuries (leaf), Hypertension (root), Hypnotics and sedatives (root), Bite(Snake) (unspecified), Hypertension (unspecified), Furunculosis (unspecified), Malaria (unspecified), Snake bites (unspecified), Typhoid fever (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

It can be grown from seeds or large cuttings or sections of branches.
Mode cuttings seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Rauvolfia caffra unspecified picture

Distribution

Rauvolfia caffra world distribution map, present in Angola, Benin, Central African Republic, Cameroon, Congo, Gabon, Equatorial Guinea, Kenya, Mozambique, Malawi, Nigeria, South Sudan, Sao Tome and Principe, eSwatini, Chad, Togo, Tanzania, United Republic of, Uganda, South Africa, Zambia, and Zimbabwe

Conservation status

Rauvolfia caffra threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:81519-1
WFO ID wfo-0000295012
COL ID 4RMB4
BDTFX ID -
INPN ID 447569
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Rauvolfia caffra Rauvolfia goetzei Rauvolfia gonioclada Rauvolfia leucopoda Rauvolfia macrophylla Rauvolfia natalensis Rauvolfia obliquinervis Rauvolfia ochrosioides Rauvolfia oxyphylla Rauvolfia tchibangensis Rauvolfia verticillata Rauvolfia welwitschii Rauvolfia mayombensis Rauvolfia caffra var. natalensis Rauvolfia inebrians