Spanish dagger, palm lily, mound-lily yucca
Vascular – Exotic
Occur naturally on coastal dunes and shell mounds near the Atlantic, from North Carolina to north-east Florida.
An erect evergreen shrub with swordlike leaves about 5 cm wide and 0.6-0.9 m long originating from a basal rosette. The leaves are bluish or grayish green with smooth margins and pointed tips. They tend to bend near the middle and arch downward. In summer mound-lily yucca puts up a showy 6-8 ft (1.8-2.4 m) spike of fragrant flowers that are white with purplish tinges, pendant and about 7.6 cm across. Mound-lily yucca stays in a stemless rounded clump 2-5 ft (0.6-1.5 m) across and about the same height for several years, but eventually develops a trunk or stem which elevates that clump of leaves above the ground as much as 1.8-2.4 m. In older plants the stem develops branches and each terminus has its own rosette of leaves.
The cultivar, Nobilis has dark green leaves and Variegata has leaves with yellow margins.
Seed and stem and root fragments.