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Dianthus (/ d aɪ ˈ æ n θ ə s / dy-AN-thəs) [1] is a genus of about 340 species of flowering plants in the family Caryophyllaceae, native mainly to Europe and Asia, with a few species in north Africa and in southern Africa, and one species (D. repens) in arctic North America.
The flowers are produced in a dense cluster of up to 30 at the top of the stems (known as an umbel) and have a spicy, clove-like scent; each flower is 2–3 cm diameter with five petals with serrated edges; in wild plants the petals are red with a white base. [5] [7] [8] There are two varieties: [5] Dianthus barbatus var. barbatus. Southern Europe.
Dianthus armeria is a species of open and periodically disturbed sites. It is normally an annual but can be biennial or a short-lived perennial. New leaf rosettes form at the base of old plants from buds located on their roots, demonstrating that this species is in fact a short-lived perennial and has a life-span of less than two and a half years. [6]
Dianthus superbus is a popular garden plant and several cultivars and hybrids have been selected, with flower colour varying from white to red or purple, usually with a green centre. It thrives in ordinary to dry soil in full sun; partial shade is preferred in hot climates.
Dianthus plumarius is a compact evergreen perennial reaching on average 30–60 centimetres (12–24 in) in height. The stem is green, erect, glabrous and branched on the top. The leaves are opposite, simple, linear and sessile , more or less erect and flexuous , with a sheath embracing the stem.
Below is a list of Dianthus species and cultivars which have gained the Royal Horticultural Society's Award of Garden Merit.This is an important group of more-or-less fragrant summer-flowering perennial garden plants, which can be divided into three main groups:-
Dianthus chinensis, commonly known as rainbow pink [1] or China pink is a species of Dianthus native to northern China, Korea, Mongolia, and southeastern Russia. [2] It is a herbaceous perennial plant growing to 30–50 cm tall.
Dianthus caryophyllus (/ d aɪ ˈ æ n θ ə s ˌ k ɛər i ə ˈ f ɪ l ə s / dy-AN-thəs KAIR-ee-ə-FIL-əs), [1] [2] commonly known as carnation or clove pink, is a species of Dianthus native to the Mediterranean region. Its exact natural range is uncertain due to extensive cultivation over the last 2,000 years.