Q.Names of a Plant
I’m trying to find the name of a plant. The only thing I can remember is that it began with Southern. It is a large soft-leaf plant that grows fragile looking stems (that wave in the wind) that have groupings all up the stem of small tiny flowers (mine are light yellow). It comes back every year. Where can I find the name – just the common name?

Southern beech fern; Broad beech fern, Thelypteris hexagonoptera; Phegopteris hexagonoptera
Southern fragile fern; Lowland brittle fern, Cystopteris protrusa
Southern Japanese hemlock, Tsuga sieboldii
Southern lady fern, Athyrium asplenioides
Southern lady fern, Athyrium filix-femina var.asplenoioides
Southern maiden fern; Southern shield fern; River fern; Widespread maiden fern, Thelpteris kunthii; Thelypteris normalis
Southern maidenhair fern; Venus maidenhair fern, Adiantum capillus vereris
southern amaranth Amaranthus australis Native Plant
southern bayberry; wax myrtle Myrica cerifera Native Plant
southern bulrush, giant bulrush Schoenoplectus californicus (syn. Scirpus californicus) Native Plant
southern cut grass Leersia hexandra Native Plant
Southern cutgrass Leersia spp. Native Plant
southern naiad Najas guadalupensis Native Plant
southern needleleaf
If this list doesn't help, take samples to your local agricultural extension office for identification.
Without knowing which zone you are in, it's difficult to narrow the search.