Danais rhamnifolia

References

1. [1]Adansonia Vol. 16 — Museum National D'Histoire Naturelle; Paris. · 1994 · http://www.biodiversitylibrary.org · ISBN 0240-8937 ↩︎A botanical magazine containing a range of articles, including a revision of a section of the genus Danais. It can be downloaded from the Internet.
2. [2]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.