Manihot grahamii / Hardy Tapioca / Graham's Cassava: a native of Eastern South America, from Brazil through to Argentina. I've done a quick web search and this has been successfully grown as far north as North Carolina. (This photo said it was taken in the Pacific NW).
The Hawaiian palm (Brighamia insignis) es a very unusual and decorative house plant. New leaves form in the crown and the older, lowermost leaves turn yellow and wither. Very few of these plants still remain in their natural habitat in Hawaii. The IUCN (International Union for Conservation of Nature) is working together with scientists and volunteers, on a survival plan. For every plant sold, a sum is donated to the IUCN. Height supplied 25-30 cm.