A friend managed to germinate some Tylosema esculentum. Edible bean/nut and root. Anyone heard of it?
http://tropical.theferns.info/viewtropical.php?id=Tylosema+esculentum"The seeds have a protein content around 30% (approaching that of the soya bean) and an oil content around 40% (approaching that of the peanut)[301
].
The immature seeds and stems may be eaten cooked as a vegetable or in soups[299
].
A coffee-like beverage can be made from the seeds[317
].
An edible oil is obtained from the seed[301
]. Similar to almond oil in consistency and taste[299
, 301
]. Golden-yellow, with a nutty odour and a pleasant, although slightly bitter flavour[299
]
Tuber - cooked. The sweet-tasting tuber can be baked, boiled or roasted[301
, 317
]. Young tubers have a sweet and pleasant taste and the texture has been described as similar to that of artichoke[299
]. Tubers older than 2 years become fibrous and bitter and are usually not eaten, but they are an important emergency source of water for humans and animals"