This introduced perennial plant has a large rosette of evergreen basal leaves that spread outward in all directions. Individual basal leaves are up to 30" long and 2" across; they are blue-gray or green-gray and linear in shape with sharp tips. Except for occasional thread-like fibers, the leaf margins are entire (smooth, rather than serrated). Because of their stiff texture, the basal leaves are normally straight, but sometimes they bend downward around the middle. From the middle of the rosette, one or more flowering stalks are produced that are 5-8' tall. These stalks are more or less erect, but occasionally they fall over from a wind storm or some other reason. The central stalk of the inflorescence is dull light green, slightly pubescent, and rather stout; except for a few leafy bracts, it is largely naked. The bracts are nearly appressed against the stalk and quite small in size. The inflorescence consists of a large panicle of flowers that is typically about 3' long and 1½' across. The lateral branches of the panicle are ascending to widely spreading; like the central stalk, they are dull light green and slightly pubescent. The flowers hang downward from the lateral branches on short stout pedicels. Individual flowers are about 2½" and 1" across, consisting of 6 white tepals, 6 white stamens, and a pistil with central white style. The reproductive organs are hidden within the bell-shaped corolla of the flower. The showy tepals are ovate in shape with glossy surfaces. The blooming period occurs during early to mid-summer and lasts about 3 weeks. There is a strong and pleasant floral fragrance. Those flowers that are successfully fertilized develop light green seedpods about 2½" long and 1" across. Each seed pod has a short-cylindrical in shape and it is 3-celled. At maturity, the seedpods become nearly black and divide into 3 parts, releasing their seeds. Within each cell, the rather large seeds are stacked together in a column. Each seed is black, somewhat flattened, and more or less round in circumference. This plant reproduces by reseeding itself and by forming vegetative offsets from the rosette of basal leaves. In time, these offsets form their own rosettes of basal leaves. The root system consists of an underground caudex with fibrous roots.