purpleinopp said:Maybe Baccharis halimifolia.
The Woody Landscape Plants Germplasm Repository (WLPGR) is responsible for maintaining 182 genera that range from Abelia to Zelkova. More than 1,400 accessions of seeds are maintained in a mid-term storage facility, and 2,800 plants are maintained "on the grounds" at Beltsville and Glenn Dale, MD, and Washington, D.C. Not all accessions are available for distribution. Accessions that are available for distribution are for research purposes only to qualified institutions.