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Hibiscus flower. Flower colour in certain species, such as H. mutabilis and H. tiliaceus, changes with age. [10] The fruit is a dry five-lobed capsule, containing several seeds in each lobe, which are released when the capsule dehisces (splits open) at maturity. It is of red and white colours. It is an example of complete flowers.
[21] [22] The flower can also be used as a pH indicator; when used, the flower turns acidic solutions to a dark pink or magenta color and turns basic solutions to green. In several countries the flowers are dried to use in a beverage, usually tea. Hibiscus × rosa-sinensis is considered to have a number of medical uses in Chinese herbology. [23]
Hibiscus syriacus has 5-petaled flowers (to 7.5 cm or 3 inches diameter) [16] in solid colors of white, red, purple, mauve, violet, or blue, or bicolors with a different colored throat, depending upon the cultivar. Extending from the base of these five petals is the pistil at the center, with the stamen around it.
The flowers are 8–10 cm (3–4 in) in diameter, white to pale yellow with a dark red spot at the base of each petal, and have a stout, conspicuous calyx at the base, 1–2 cm (0.39–0.79 in) wide, enlarging to 3–3.5 cm (1.2–1.4 in) and becoming fleshy and a deep crimson red as the fruit matures, which takes about six months.
The flowers are rich in carotenoids, and are thus used to make food and feed pigments. [29] The dried flower petals, ground to a powder, are used in poultry feed to ensure a good colouration of egg yolks and broiler skin, especially in the absence of well-pigmented yellow maize in the feed. [30]
Malvaceae (/ m æ l ˈ v eɪ s i ˌ aɪ,-s iː ˌ iː /), or the mallows, is a family of flowering plants estimated to contain 244 genera with 4225 known species. [4] [5] Well-known members of economic importance include okra, cotton, cacao, roselle and durian.
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Hibiscus mutabilis, also known as the Confederate rose, Dixie rosemallow, cotton rose or cotton rosemallow, is a plant long cultivated for its showy flowers. Originally native to southern China , [ 1 ] it is now found on all continents except Antarctica .