Phil, I have noticed this, the production of stolons on occasion in local populations of aquatically adapted tropical species (it has yellow pollen unlike native SE US species), likely a form of H. latifolia. It is not common, but I suspect very old plants are capable of doing this in disturbed colonies. These mostly offset from the basal plate. Those types of storms are most definitley a mode of distribution of these tropical Caribbean spider lilies, making the exact origins of the plants hard to pin down, confusing the taxonomy. Even here in Florida the hurricanes can displace spider lilies along the coasts. There are some species, for example: H. rotata, H. choctawensis, H. duvalensis, H. godfreyi offset primarily by stolon. These are all riverine species and flooding can disturb colonies. Best, Kevin D. Preuss http://www.amaryllis-plus.com/