These Bowiea volubilis subsp. volubilis caudices cultivated in the Karoo Desert National Botanical Garden grow largely above-ground. The nearly globular bulb becomes up to 15 cm in diameter. The bulb is comprised of many overlapping scales. The outer scales exposed to sunlight are green, those covered inside remain white.
Plant parts, also the bulbs are highly toxic. Stories of disastrous consequences of cardiac arrest following the ingestion of parts of them may linger in the traditional populations where everything conceivable had been tried medicinally over time. Nevertheless, local traditional healers have succeeded in developing remedies for a series of ailments involving parts of this plant in clever ways.
This has also happened in the case of countless other indigenous plants in South Africa. An estimate of 4000 southern African plant species feature in some way in medicines of some sort. African medicines coexist beside Western allopathic, homeopathic and herbal ones locally. Similar international bodies of ethnic medicinal knowledge continue to be used worldwide, including famous ones in China and India.
And more, B. volubilis subsp. volubilis also offers benefits including warrior protection and traveller insurance, to mention some of the physical benefits reaped (mainly in the past) from prophylactic use of the ugibisisila or iguleni, as the Zulus call this plant.
Some secrets concerning methods of preparation and application of medicines continually get lost in the “archives of tradition”. Word of mouth knowledge transmission to educate novice healers is old; for long the only source of healing for all human ancestors of long enough ago.
Such practices remain stable for only so many generations. As discovery and forgetting mould them, they differentiate due to cultural and language divides, also the distances among practitioners. Such orally communicated knowledge is often carried to the last practitioner and then dies from disuse.
Committing such material to systematic recording, followed by integration and continual accumulative reorganisation, remains the hallmark of preserving culture in civilisation (Van Wyk and Gericke, 2000; www.plantzafrica.com).