Heirloom
An old cultivar, usually open-pollinated, handed down by gardeners over generations.
Also: heritage variety
There is no fixed rule for what counts as an heirloom. The word usually means an old variety, often grown before modern commercial breeding, that comes true from saved seed or has been passed along by cuttings and division. Old sweet peas with strong scent, cottage pinks, old garden roses and many dahlias are sold as heirlooms. People grow them for scent, history and form, and to keep variety alive, even though they may flower for a shorter time than modern kinds.