Cyanea marksii

Cyanea marksii, or Marks' cyanea, is a tree in the bellflower family. It is critically endangered. Some think that it is extinct.

Distribution
It is native to North America and was found on Hawaii.

Taxonomy
It was named by Joseph Rock in ''Occas. Pap.'' Bernice Pauahi Bishop Mus. 22: 52 in 1957.