Rosa rugosa
The hybrid rugosas likewise are not officially old garden roses, but tend to be included in them. Derived from "Rosa rugosa" ("Japanese rose"), native to Japan and Korea and introduced into the West circa the 1880s, these vigorous roses are extremely hardy with excellent disease resistance. Most are extremely fragrant, remontant, and produce moderately double, flat flowers. The defining characteristic of a hybrid rugosa rose is its rugose, i. e., wrinkly foliage, but some hybrid rugosas lack this trait. These roses often set large hips. Examples include 'Hansa' and 'Roseraie de l'Häy'.