Chasmone tuberosa (Eckl. & Zeyh.) Meisn.
Argyrolobium angustifolium Eckl. & Zeyh.
Argyrolobium tuberosum is an erect, herbaceous perennial plant producing a single, unbranched or slightly branched stem 40 - 90cm tall from a tuberous rootstock[
The plant is harvested from the wild for local use as a food.
Southern Africa - Zimbabwe, Swaziland, S. Africa
Sandy river banks and grassland; at elevations around 1,700 metres[
Argyrolobium tuberosum grows at moderate elevations in the subtropical regions of S. Africa, where it can experience several frosts each year and occasional snow. Rainfall can vary from 600 - 1,200mm per year[
This species has a symbiotic relationship with certain soil bacteria; these bacteria form nodules on the roots and fix atmospheric nitrogen. Some of this nitrogen is utilized by the growing plant but some can also be used by other plants growing nearby[
]. Children chew the roots[
]. The tuberous root can be more than 30cm long[