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the web of life in southern Africa

Dracaena transvaalensis (Wolkberg dragon-tree)

Wolkberg-drakeboom [Afrikaans]; photsoloma [North Sotho]; Tshila-mbila [Venda]

Life > eukaryotes > Archaeoplastida > Chloroplastida > Charophyta > Streptophytina > Plantae (land plants) > Tracheophyta (vascular plants) > Euphyllophyta > Lignophyta (woody plants) > Spermatophyta (seed plants) > Angiospermae (flowering plants) > Monocotyledons > Order: Asparagales > Family: Asparagaceae > Genus: Dracaena

A shrub or small tree with a main stem terminating in a rosette of elongate erect leaves, 30-50 cm long. For a Dracaena it is unusual in growing in a fairly arid, open habitat, with its distribution limited to the dry bushveld escarpment of northern Mpumalanga and southern Limpopo provinces in South Africa.

Identification

  • Shrub or small tree, 2-5 m high.
  • Leaves are greyish-green, leathery and strap-like, 30-50 cm long by 3-6 cm wide, have a prominent midrib, and tend to be erect not drooping.
  • Bark is whitish to light brown with leaf scars.
  • Flowers in sprays 15-20 cm long, greenish-white to cream and 20-25 cm long. They are sweet-smelling and open at night.
  • Fruit are usually two lobed and are orange when mature.

Distribution and habitat

Distribution is limited to the escarpment in northern Mpumalanga and southern Limpopo provinces, South Africa. Unusual for a species of Dracaena in that it grows in arid areas, on rocky mountain slopes and in open ravines.

Ecological interactions

  • As the flowers are sweet-smelling and open at night, it is likely that they are pollinated by moths, but there is no evidence to support this.

Phenology

  • Flowers from January to March.
  • Fruits from March to June.

Uses

  • None known.

References

  • Palgrave, K.C. and Palgrave, M.C. 2002. Trees of Southern Africa. 3rd Edition. Struik Publishers, Cape Town.
  • Schmidt, E., Lotter, M., McCleland, W. and Burrows, J.E. 2002. Trees and Shrubs of Mpumalanga and Kruger National Park. Jacana, Johannesburg.

Text by Hamish Robertson