Catharanthus roseus
(L.) Don
Familia
APOCYNACEAE
Pervinca,
Vinca rosa, Pervinca rosa, Dominica
Catharanthus roseus, commonly
known as Madagascar periwinkle, is a species of perennial herbaceous or
shrubby plant in the Apocynaceae family. It is native and endemic to
Madagascar, but is now widely cultivated in tropical, subtropical and
temperate regions around the world thanks to its showy flowers and
remarkable hardiness.
The flowers have five petals with a diameter of
2 to 5 cm. They come in a wide range of colours, from pure white to
shades of pink, fuchsia, orange and red, often with a darker or
contrasting centre.
Its leaves are oval or oblong, a very striking
bright green, with a paler central vein.
It is highly prized in
gardening due to its high tolerance to extreme heat, drought and
poor-quality soils.
It requires full sun or partial shade to flower
profusely. Water sparingly to moderately. It is essential to avoid
waterlogging, as its roots are prone to rotting due to excess moisture.
It requires a well-drained growing medium. It grows well even in sandy
or slightly infertile soils.
Despite being a very common ornamental
plant, Catharanthus roseus is one of the most important botanical
resources for modern medicine. It produces a large quantity of indole
alkaloids, notably two essential chemotherapeutic compounds:
The
entire plant is highly toxic if ingested directly, so it must be kept
out of the reach of pets and children. The medicinal compounds are only
safe after chemical isolation in specialised laboratories.
El Hierro, La Palma, La
Gomera, Tenerife, Gran Canaria, Fuerteventura, Lanzarote