Alcea Description
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Hollyhocks
The hollyhocks (Alcea) is a genus of plants in the mallow family (Malvaceae).
Description
Vegetative characteristics
In Alcea species are upright, one-, two-year or short-lived perennial, herbaceous plants. The vegetative parts of plants with stellate hairs (trichomes) are covered, sometimes also with long simple hairs. In the first year they only form a basal rosette of leaves. In the second year, they form a 1-3 m high, more or less unbranched, upright stems with alternate leaves, ending with the inflorescence. The leaves are divided into long petiole and leaf blade. The leaf blade is ovate to round, and depending on the type lobed mild to tiefgeteilt. The leaf margin is crenate to toothed. Stipules are present.
Generative characteristics
The flowers are individually or collectively in the leaf axils, with a total often a long, spiciform inflorescence. The flowers are large but somewhat, hermaphroditic, five parts with double perianth. The six or seven Nebenkelchblätter are fused only at their base. The five fluffy hairy sepals are fused. The wild species in the white, yellow or pink to purple are five free petals are usually longer than 3 cm wide.
The compact dust bags are yellow. Consisting of 15 or more carpels deformed ovary consists of 15 or more chambers, each with only one ovule. There are as many stamens as carpels present. In the subfamily Malvoideae the many stamens are fused tube surrounding a stamp, called the Columna.
The discus gap in at least 15 zerfält fruit smooth or fluffy part hairy fruit. The seeds are smooth or provided with pustules.
Source: http://de.wikipedia.org/wiki/Stockrosen
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Sansevieria
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Sansevieria is a genus of succulent plants, usually grasses. It belongs to the family Liliaceae (or that of Dracaenaceae), according to classical, or that of Ruscaceae by phylogenetic classification.
These species are native to tropical regions of Africa and some Asian.
Description
The leaves are triangular. Some species have leaves 10 cm wide at the base and 15 cm long. Others are 6cm wide and can reach up to 2m in height and form bushes.
The bloom consists erect panicles of small white flowers with greenish-white or without interest. The fruit is a berry red or orange.
Some species of Sansevieria plants are considered pollution removal. They absorb such as benzene, formaldehyde, toluene, trichlorethylene or xylene.
Source: http://fr.wikipedia.org/wiki/Sansevieria
See Also: International Flower Delivery, Florist
Polyscias
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The genus Polyscias includes approximately 100 species of herbs and shrubs of the family Araliaceae.
Polyscias is a kind Evergreen met the tropics in the Pacific Islands and Australia, menon widespread in New Guinea, New Caledonia and the Mascarene Islands.
It is characterized by alternate leaves are pinnate, or bipinnate tripinnate, with a long petiole.
The inflorescences are arranged in panicles terminal and form umbels or heads composed of small flowers unisexual or bisexual.
Source: http://fr.wikipedia.org/wiki/Polyscias
See Also: International Flower Delivery, Florist
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