@lioness HI - that's a carnation. Either one of the varieties raised "for the trade" (the most likely choice) or a cream colored one where the stems were dipped in a dye solution until it began to rise into the flower petals (what florists used to do before all the varieties were available.)
That brings back memories. Back in the day, you could order just about any color of carnations you wanted for corsages or wedding bouquets. Florists maintained quart or gallon jars of dye-water, bought dozens of white carnations, and some young employee would stand and dip stems after school during homecoming, prom & wedding season.
Sue