Yucca aloifolia
L.
Aloe yucca, Dagger plant, Spanish bayonet
An evergreen, rhizomatous, palm-shaped shrub with a woody, simple or
branched stem, about 5-6 m high, covered with a greyish-brown bark very
marked by the scars of fallen leaves.
Its large dark green leaves,
25-40 cm long and 3-6 cm wide, are arranged in large rosettes at the
ends of the stems.
They are simple, alternate, narrowly lanceolate,
sessile, rigid, slightly concave on the upper side, rough on the
underside, tapering at the base, grooved towards the apex, and ending in
a sharp reddish-brown tip up to 4 cm long.

The flowers are grouped in showy, erect, terminal branched
inflorescences, 30-50 cm high, located at the end of the stems.
Individual flowers, 2-4 cm long, pendulous, with petaloid, bell-shaped
perianth, formed by six creamy white tepals, sometimes with purple tones
at the apex.
They produce fruit in the shape of an elongated berry up
to 10 cm long, with longitudinal angles and more or less flat, pendulous
intermediate faces, bright green at first, dark purple when ripe and
almost black when dry, containing a fleshy, perfumed pulp.
They
contain numerous compressed, shiny, black seeds.
It flowers between September and November, although under favourable
conditions it flowers at any time of the year.
Multiplication is by
seed and cuttings.
This species is native to some regions of the
Caribbean and North America, growing in sandy coastal areas and soils as
well as in low mountainous areas.
Its current distribution extends
from the United States, Mexico, El Salvador, the Antilles, Argentina,
southern Bolivia, etc.