Msasa
| Msasa | |
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| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Eudicots |
| (unranked): | Rosids |
| Order: | Fabales |
| Family: | Fabaceae |
| Genus: | Brachystegia |
| Species: | B. spiciformis |
| Binomial name | |
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Brachystegia spiciformis Benth. |
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| Synonyms | |
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Brachystegia spiciformis Benth., commonly known as zebrawood, or Msasa, is a medium-sized African tree having compound leaves and racemes of small fragrant green flowers. The tree is broad and has a distinctive amber and wine red colour when the young leaves sprout during spring (August-September). It grows in savanna, both open woodland and closed woodland of Southern and Eastern Africa, mostly Tanzania, Zambia, Zimbabwe, Malawi and Mozambique. The word Msasa is commonly used as a proper name in African place names. The word also means 'rough plant' in Swahili. Other common names: Mundu, Myombo, Mtondo (Tanzania), Muputu (Zambia). The plant is known in the Venda language as mutsiwa, which means 'the one that is left behind'. An outlying population of Brachystegia has recently been discovered in the Soutpansberg mountains of northern South Africa. This tree is a protected species in South Africa.
The Msasa is a tropical tree and grows best in open woodland where there is a sharp distinction between wet and dry seasons. The northern end of its range is near Tabora in Tanzania (about 5° S) and its southernmost extent is near Quissico on the coast of Mozambique just outside the tropics (about 25° S). Msasas need a minimum of around 500 mm rain although the amount of rain in the summer growing season is more important than the annual rainfall. It needs a mean annual temperature of around 19 to 20 °C. It does not thrive under a combination of cold and wet conditions and like many tropical plants it requires a hot dry period before the onset of the growing season.
The tree typically reaches a height of about 16 metres although it is less tall in more drought-prone areas. In central Zambia and eastern Angola, magnificent specimens of about 18–19 metres are common due to the reliability of heavy rain during the growing season. It favours inland situations at an altitude of around 1000–1400 metres (due to the sharp difference between day and nighttime temperatures) although it grows down to sea level at its southern extremity. The tree presents a series of changes according to the seasons. It starts to lose its leaves as the cool season begins in late May (somewhat sluggishly) and by early August it is bare or nearly so. In late August as temperatures rise again, the new leaves are produced. These are often bright red in colour, but vary from almost purple to brownish in different individuals. The colour shifts to deep green over a period of 10–20 days. The insignificant flowers appear after the new leaves and these are followed by the dehiscent pods (about 12–15 cm in length) in April. As with many legume species the pods split explosively and the flat seeds (about 2 cm across) are flung some distance from the parent tree.
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Wikipedia