Dipogon lignosus is a noun (the name of a thing).
It refers to a type of plant that is native to South Africa.
This plant is an evergreen, which means it stays green all year long.
It is a partly woody vine, meaning it grows like a vine and has some hard, woody parts.
Clusters of rosy purple flowers: This plant produces groups of beautiful flowers that are a pinkish-purple color.
After flowering, it produces edible pods that look like snap beans, which means you can eat the pods.
It is also used as green manure, meaning it can be planted to improve soil quality.
Sometimes, it is placed in a different plant group called Dolichos.