Roselle grows to 8" tall and has alternate lobed reddish leaves. The stems are also reddish.
The most important edible part is the fleshy sepal (calyx), which is intense red and tastes acid. The calyx is the part that is left over after the bloom; it is used in jelly and in juice.
The leaves and young stems are edible and used in salads or cooked as a vegetable.
Sorrel can also be used as a substitute for cranberry. Roselle is used as a coffee substitute in Africa, while (red) roselle is used as a food color in Surinam.
The enlarged fleshy, red sepals enveloping the seed capsule are used for this application.
A close relative of Roselle (hibuscus canabinus L. - Kenaf) is used for its fibers, a raw material in the production of paper and paperboard products.
Medicinal applications
In Taiwan, the seeds are used as a diuretic and laxative.
In Central Africa, the leaves are used externally on abscesses.
Other applications include
Against cough, dyspepsia, fever, hypertension, high cholesterol and for stimulating intestinal peristalsis.