VAALBOS / Tarchonanthus camphoratus Compositae L. T. camphoratus leaves. Note the velvety look. (Bob Bailis) Shrub of T. camphoratus (Bob Bailis)
LOCAL NAMES Afrikaans (vaalbos,kanferbos); English (wild sage wood,wild cotton,wild camphor tree,camphor bush); Swahili (mkalambati); Zulu (amathola)
BOTANIC DESCRIPTION Tarchonanthus camphoratus is an evergreen shrub or small tree to 9 m tall, usually much-branched with a narrow crown; trunk diameter to 40 cm; bark brown or grey, rough, longitudinally fissured, exfoliating in long strips; young stems densely covered by white felt-like tomentum. Leaves shortly petiolate; petiole 0.2-1 cm long; blade narrowly to broadly elliptic or oblanceolate, 2-13.5 cm long, 0.4-4.5 cm wide, base cuneate or attenuate, margins entire, apex obtuse or subacute and shortly mucronate, discolourous, green and glabrous except for mid-rib above, felted with dense white or grey tomentum beneath, prominently pinnately veined, strongly camphor-scented when crushed. Floral heads small, numerous in usually copious terminal compound open paniculoid thyrses leafy in lower part, with smaller bracts in upper part and yellow-brown tomentose when young, shortly pedicellate; involucres campanulate, 2.5-6 mm long; phyllaries 2-6 mm long, tomentose beneath, glabrous above, in male capitula connate in lower 1/2-1/4, in female capitula free. Male florets 12-66, corolla white, tube infundibuliform, 1.8- 3.5 mm long with long white hairs, lobes ovate, 0.5-0.8 mm long. Achenes obovoid in outline, narrowed towards the base and apex, brown, 1.6-4 mm long, 1-ribbed on the other, densely covered in long white cottonwoolly hairs and crowned with persistent corolla. Tarchonanthus is a genus closely related to Brachylaena, with two species ranging from Saudi Arabia through East Africa to South Africa.
BIOLOGY T. camphoratus is dioecious. Sexes separate, on different plants. Flowerheads in terminal panicles. Individual flowers creamy-white, grouped into 3-5 flower capitula. Covered in white woolly hairs. (Fouché HJ) Agroforestry Database 4.0 (Orwa et al.2009) Page 1 of 5 Tarchonanthus camphoratus Compositae L.
ECOLOGY T. camphoratus is a common plant of the savanna biome, dry forest margins or secondary deciduous bushland, woodland and wooded grassland often dominant or co-dominant and commonly associated with Acacia spp. and Adansonia digitata.
BIOPHYSICAL LIMITS Altitude: 0-2 750 m Mean annual temperature: 22 deg. C Mean annual rainfall: 300-1 000 mm Soil type: Prefers deep soils and can withstand seasonal water logging, however, it is commonly found on stony soils.
DOCUMENTED SPECIES DISTRIBUTION OF THE VAALBOS it does neither suggest that the species can be planted in every ecological zone within that country, nor that the species can not be planted in other countries than those depicted. Since some tree species are invasive, you need to follow bio safety procedures that apply to your planting site. Exotic range Native range Native: Angola, Ethiopia, Kenya, Lesotho, Namibia, Somalia, South Africa, Tanzania, Uganda, Zimbabwe Exotic: Agroforestry Database 4.0 (Orwa et al.2009) Page 2 of 5 Tarchonanthus camphoratus Compositae L. The map above shows countries where the species has been planted. It does neither suggest that the species can be planted in every ecological zone within that country, nor that the species can not be planted in other countries than those depicted. Since some tree species are invasive, you need to follow biosafety procedures that apply to your planting site.
PRODUCTS OF THE VAALBOS Food: Leaves used to prepare a beverage, smoked as tobacco or inhaled as snuff. Fodder: Shoot and leaves browsed by cattle. Milled mature branches, 1.25 cm in diameter, of T. camphoratus and Grewia flava show great promise as cattle fattening feed. Fuel: Provides high quality fuelwood. Timber: Used for hut-building, making of general utensils and hunting weaponry e.g. bows and fishing rods, rungus or knobkieries made from the rootstock. The wood is termite resistant.
Essential oil: The essential oil extracted from leaves is the safest and most effective natural product for protection from mosquitoes, midges and many kinds of biting insects. The product, containing only 0.3% of the active ingredient, is effective for 6-10 hours, therefore guaranteeing protection even for an entire night. Medicine: Several African tribes use this plant as a treatment for bronchitis and chest ailments, for chilblains, tired legs and sore feet. A tea made of the crushed leaf is taken infused in one cup of boiling water for stomach ailments, asthma, over-anxiety and heartburn. Tarchonanthus essential oil has also been found to have excellent cosmetic and dermatological properties specially as soothing, anti-irritation, decongestant remedy for sensitive skins, dermatitis, sunburns, bedsores, etc. The Maasai of Kenya and Tanzania carry leaves of the plant as a deodorant.
SERVICES OF THE VAALBOS
Erosion control: The camphor bush can be used for dune fixation and prevention of soil erosion by wind and water. Shade or shelter: It is wind firm and can act as a windbreak for low winds. Its resistance to fire is remarkable, little mortality is seen in T. camphoratus even after three burnings, making it ideal for firebreaks. Reclamation: The camphor tree is drought and fire resistant and can be used to reclaim drylands.
Soil improver: The slow decomposing leaves improve soil fertility. Ornamental: T. camphoratus is a popular indigenous ornamental in South Africa, specially suited for bonsai with its aggressive root system.
Linksfontein has an abundance of these bushes.
Source: http://(http://www.worldagroforestry.org/af/treedb/)