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The flowers have seven to nine, often even more, white egg-shaped petals. The sepals are lanceolate. [6] Silene nutans (Nottingham catchfly, Caryophyllaceae) shows ensiform-lanceolate leaves. The slightly rosette-like ground leaves are bigger and of different shape than the sparse, opposite leaves on the stem. [6]
In most plants, stems are located above the soil surface, but some plants have underground stems. Stems have several main functions: [3] Support for and the elevation of leaves, flowers, and fruits. The stems keep the leaves in the light and provide a place for the plant to keep its flowers and fruits.
The flowers appear on a spear-like spike which can grow up to 2 metres (6.6 ft) tall. The flowers, with 6 petals, usually cover 1 ⁄ 2 – 5 ⁄ 6 of the stem. The crown of leaves is almost spherical in shape, the point of each leaf perfectly marking the shape of the imagined sphere. The leaves crown the trunk in a crowded whorl of long, wiry ...
Some plants have bracts that subtend the inflorescence, where the flowers are on branched stalks; the bracts are not connected to the stalks holding the flowers, but are adnate or attached to the main stem (Adnate describes the fusing together of different unrelated parts. When the parts fused together are the same, they are connately joined.)
Each plant will have either one or two flowering stems and each will have between 20 and 70 flowers. The bracts vary in shape from being long and thin like a blade of grass to being shaped like the blade of a trowel and are located under the stems that attach the flowers to the main stem of the raceme (the pedicels). Each bract is 5–10 ...
As the vine dies, the stem turns from green to a dark brown color. Along the stem there are often black-tipped thorns that are about 1/3-inch-long. Some stems of Common green brier do not have thorns. The upper surfaces of the leaves are darker than the undersides. The rounded alternate leaves are about 2 to 5 inches long. [8]
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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.