Yucca L.

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1980, Flora Europaea. Volume 5. Alismataceae to Orchidaceae (Monocotyledones), Cambridge: Cambridge University Press : 75

3. Yucca L. 1

Leaves usually pungent. Flowers pedicellate, nodding or pendent. Perianth campanulate, white, of 6 free segments. Stamens and style included. Filaments wide, fleshy; anthers small, more or less immersed in apex of filament. Ovary superior; style cylindrical, usually short and thick; stigma shortly 3-lobed. Fruit a capsule or fleshy and berry-like. Literature: W. Trelease, Ann. Rep. Missouri Bot. Gard. 13:

42-116(1902). G. Molon, Le Yucche. Milano. 1914.

Stoloniferous herb, without woody stem above ground; leaves with conspicuous filaments shredding from their margins

1. filamentosa Shrub, with woody stem above ground; leaves with few marginal filaments or none 2. gloriosa