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Diagram of flower parts. In botany, floral morphology is the study of the diversity of forms and structures presented by the flower, which, by definition, is a branch of limited growth that bears the modified leaves responsible for reproduction and protection of the gametes, called floral pieces.
[1] [6] The flower stem is known as a pedicel, and those flowers with such a stem are called pedicellate, while those without are called sessile. [7] In the angiosperms, the flowers are arranged on a flower stem as an inflorescence. Just beneath (subtended) the flower there may be a modified, and usually reduced, leaf, called a bract.
A Lilium flower showing the six tepals: the outer three are sepals and the inner three are petals. Undifferentiated tepals are believed to be the ancestral condition in flowering plants . For example, Amborella , which is thought to have separated earliest in the evolution of flowering plants, [ 4 ] has flowers with undifferentiated tepals.
Flower, leaves and bulb of Hippeastrum miniatum. Francisco Manuel Blanco, Flora de Filipinas 1880–1883 Hippeastrum bulb Detail of Hippeastrum flower. Hippeastrum (/ ˌ h ɪ p iː ˈ æ s t r ə m /) [17] is a genus of 116 species, [18] and over 600 hybrids and cultivars, of perennial, herbaceous and bulbous plants, native to tropical and subtropical regions of the Americas, from Mexico south ...
Tiny white flowers usually appear in clusters surrounded by colorful papery bracts, hence the name paperflower. The leaves are dark green, variable in shape, up to 100 mm (4 in) long. [7] The flowers are about 0.4 cm (0.16 in) in diameter (the pink petal-like structures are not petals, but bracts). [8]
Ricinus communis, the castor bean [1] or castor oil plant, [2] is a species of perennial flowering plant in the spurge family, Euphorbiaceae.It is the sole species in the monotypic genus, Ricinus, and subtribe, Ricininae.
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Indigenous peoples such as the Tlingit and Haida have used the plant as traditional medicine for ailments such as adult-onset diabetes, as well as rheumatoid arthritis. [7] The plant has been used ceremonially by the Tlingit, Tsimshian, and Haida people residing in Southeast Alaska and coastal British Columbia. A piece of Devil's club hung over ...