Yucca australis
This plant, spectacular for its considerable dimensions, comes from the north-eastern Mexico; Yucca australis is without a doubt among the most imposing arboreal yucca cultivated in
Riviera, where it was introduced in the 19th century with ornamental
aims.
The trunk, widely branched, can reach a circumference of more
than 3 meters and develops in height up to 9-10 meters. The leaves are
stiff, linear, with a filiform edge and a pointed top, 50-60 cm long;
they also persist when they are dry and they form at the ends of the
branches spherical "heads", in the middle of which the hanging
inflorescences develop.
The flowers have a white-cream color and a
bell-shaped corolla (4-5 cm of length) and are perfumed. The
fecundation takes place through Prodoxus yuccasella, a pollinator insect which is not present in Europe.
