Wildflower series - Wild asparagus
Apparently the shoots of the asparagus suaveolens shrub are edible although due to the tiny size, I think you'd have to have a huge field full of these plants to collect enough to eat. It's only the small shoots with tiny, needle-like leaves, known as cladodes that are edible, the plant stems are woody and thorny and the entire small bush is rather tough and prickly. Another name for is "Katdoring" which means "cat-thorn"
The roots of this plant are used medicinally as a treatment for epilepsy and research suggests that it is able to bind to GABA-benzodiazepine receptors in the brain, which would have an anti-convulsant effect. Reference: https://www.researchgate.net/publication/8110273_Activity_of_a_traditional_South_African_epilepsy_remedy_in_the_GABA-benzodiazepine_receptor_assay