Xerophyta squarrosa

References

1. [1]Cataloge of African Plants Collected by Dr. Friedrich Welwitsch in 1853 - 1861 — Hiern. W.P. · Longmans & Co.; London. · 1898 · http://www.biodiversitylibrary.org ↩︎In 6 volumes, it gives botanical descriptions and some uses of the plants. It can be downloaded from the Internet.
2. [2]African Flowering Plants Database — Conservatoire et Jardin Botaniques. · http://www.ville-ge.ch/musinfo/bd/cjb/africa/recherche.php ↩︎Contains information on over 150,000 plant names (including synonyms) giving a description and habitat, plus a distribution map.
3. [3]Protabase - Plant Resources of Tropical Africa. — http://www.prota.org ↩︎An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.