I was browsing one of my haunts on the web and just found about another plant:
blaxruba. The other two are bladembi (Indigofera is in Fabaceae) and aizdo
(from an old Germanic form of the word "woad", related through lost
Mediterranean languages to "isatis" and a Gothic form that to us sounds like
"ui zdile").
http://www.hennapage.com/henna/how/colors/colorsblues.html
phma
--
li fi'u vu'u fi'u fi'u du li pa