Senna occidentalis is a pantropical plant species. Vernacular names include : ʻauʻaukoʻi in Hawaii, coffee senna, coffeeweed, Mogdad coffee, negro-coffee, senna coffee, Stephanie coffee, stinkingweed or styptic weed.{cn|date=August 2013} The species was formerly placed in the genus Cassia. The plant is reported to be poisonous to cattle. The pl...