Dave's Garden PlantFiles - Profile page with horticultural basics, and member-contributed photos and comments. (zone 9b-11) (24 photos)
Denver Botanic Gardens - Description, native range, and cultural requirements. (zone 9b)
John and Jacq's Garden - Informational page provided by home gardeners in Malaysia with details on culture and propagation. (additional pages for other varieties) (zone 9-11) (12 photos)
Missouri Botanical Garden - Plantfinder page for one of the plants growing at the garden, with usually one or more photos, horticultural information, and noteworthy characteristics. (zone 8-10) (1 photo)