even allergic reactions upon contact. The leaf points are even sharp enough to break the skin. Forms and varieties In collections in Europe and overseas, there are many forms and hybrids (Sprenger, Förster) from the 18th and 19th centuries. The following names have been used for material of uncertain origin in the European garden flora. Yucca gloriosa var. minor Carr. Yucca gloriosa var. obliqua Baker Yucca gloriosa f. obliqua (Harworth)Voss Yucca gloriosa f. acuminata (Sweet)Voss Yucca gloriosa f. pruinosa (Baker)Voss Yucca gloriosa f. tortulata (Baker)Voss Yucca gloriosa' var. medio-striata PlanchonYucca gloriosa var. robusta Carr.Yucca gloriosa var. nobilis Carr.Yucca gloriosa f. planifolia Engelmann|Yucca gloriosa var. plicata EngelmannYucca gloriosa var. genuina EngelmannYucca gloriosa var. flexilis TreleaseYucca gloriosa var. plicata Carr.Yucca gloriosa var. superba BakerYucca gloriosa var. longifolia Carr.Yucca gloriosa var. muculata Carr.Yucca pendula Sieber ex Carr.Yucca pattens AndreYucca pruinosa'' Baker References External links http://yuccaagavaceae.com/photos/details.php?image_id=82 Original Erstbeschreibung gloriosa Endemic flora of the United States Flora of the Southeastern United States Plants described in 1753 Taxa named by Carl Linnaeus Least concern flora of the United States Garden plants of North America Shrubs