Cassia

Among four assessed species, Argentine senna is rated fire resistant, apple blossom is rated keep away, and the sources did not take a side on the other two.

The opposing verdicts each rest on a single listing, so neither supports a broad claim about all cassias. Argentine senna, or Cassia corymbosa, has the resistant finding. Apple blossom, or Cassia javanica, has the warning. These findings do not cancel each other out; they apply to different species. They also leave two assessed species without a verdict either way.

Cassias belong to the family Fabaceae and are grown as shrubs and trees. Golden shower and senna are also members of the genus. A label that says only “cassia” therefore does not answer the fire-resistance question. Check the species name, especially to distinguish apple blossom, the member rated keep away, from Argentine senna, the member rated fire resistant.