Alpinia zerumbet
(Pers.) B.L.Burtt & R.M.Sm
Shell ginger, Shell flower
Perennial herbaceous plant, with rhizomes, which produces numerous stems
up to 3 m high, and which normally grows in clumps of several
individuals. It is often cultivated as an ornamental plant, and its
leaves are used in cooking and traditional medicine.

Its green or greenish-yellow leaves are large, up to 60 cm long and 15
cm wide, simple, lanceolate to narrowly elliptic, with pubescent margins
and petioles surrounding the stem.
It produces very showy flowers,
grouped in pendulous panicles up to 40 cm long and 10 cm wide, located
at the end of the stems.
They have a calyx about 15-20 mm long, a trilobate corolla, reminiscent
of a seashell, white with pinkish tinges at the tip, and a staminode up
to 5 cm long, lip-shaped, yellow with red spots and streaks.
The
fruits are rounded capsules about 2 cm in diameter.
Its showy
flowering occurs mainly during the summer months, but in favourable
environments, specimens can be seen flowering almost all year round.