celebre metamorfosi ovidiana narciso rappresenta la bellezza e la

Narcissus /n?:r's?s?s/ is a genus of mostly spring perennial plants in the Amaryllidaceae (amaryllis) family. Various common names including daffodil,[notes 1] daffadowndilly,[3] narcissus, and jonquil are being used to describe all or some known members of the genus. Narcissus has conspicuous flowers with six petal-like tepals surmounted with a cup- or trumpet-shaped corona. The flowers are generally white or yellowish (orange or pink in garden varieties), with either even or contrasting coloured corona and tepals.

Narcissus were popular in early civilisation, both and botanically medicinally, but formally detailed by Linnaeus in his Kinds Plantarum (1753). The genus is generally thought to have about ten parts with around 50 species. The true quantity of species has varied, depending about how they are grouped, scheduled to similarity between varieties and hybridization. The genus arose time in the Late Oligocene to Early Miocene epochs, in the Iberian peninsula and adjacent areas of southwest Europe. The exact source of the real name Narcissus is anonymous, but it is associated with a Greek phrase for intoxicated (narcotic) and the myth of the junior of this name who fell in love with his own reflection. The English phrase 'daffodil' is apparently derived from "asphodel", with which it was commonly compared.

The varieties are local to meadows and woods in southern European countries and North Africa with a center of variety in the Western Mediterranean, particularly the Iberian peninsula. Both wild and cultivated plants have naturalised widely, and were launched in to the ASIA to the tenth century prior. Narcissi have a tendency to be long-lived bulbs, which propagate by division, but are insect-pollinated also. Known pests, disorders and diseases include viruses, fungi, the larvae of flies, mites and nematodes. Some Narcissus species have become extinct, while some are threatened by increasing urbanisation and tourism.

Historical accounts suggest narcissi have been cultivated from the earliest times, but became ever more popular in Europe after the 16th hundred years and by the past due 19th hundred years were an important commercial crop centred generally on holland. Narcissi are popular as slice blooms so that as ornamental crops in private and general public gardens today. The long history of breeding has led to a large number of different cultivars. For horticultural purposes, narcissi are classified into divisions, covering a variety of shapes and colours. Like other members of the family, narcissi produce a number of different alkaloids, which provide some protection for the plant, but may be poisonous if ingested inadvertently. This property has been exploited for medicinal use within traditional healing and has led to the production of galantamine for the treating Alzheimer's dementia. Long celebrated in art and literature, narcissi are associated with a number of themes in different cultures, ranging from fatality to good fortune, and as icons of springtime. The daffodil is the national flower of Wales and the symbol of tumors charities in many countries. The appearance of the outrageous flowers in spring and coil is associated with celebrations in many places.

Narcissus is a genus of perennial herbaceous bulbiferous geophytes, dying back after flowering for an underground storage light. They regrow in the next calendar year from brown-skinned ovoid light bulbs with pronounced necks, and reach heights of 5-80 cm with regards to the species. Dwarf types such as N. asturiensis have a maximum level of 5-8 cm, while Narcissus tazetta may increase as extra tall as 80 cm.

The vegetation are scapose, having a single central leafless hollow bloom stem (scape). Several blue-green or green, small, strap-shaped leaves arise from the light bulb. The flower stem bears a solitary rose, but sometimes a cluster of flowers (umbel). The blooms, which can be conspicuous and white or yellow usually, sometimes both or hardly ever renewable, consist of a perianth of three parts. Closest to the stem (proximal) is a floral tube above the ovary, then an outer ring composed of six tepals (undifferentiated sepals and petals), and a central disc to conical formed corona. The flowers may hang down (pendent), or be erect. A couple of six pollen bearing stamens surrounding a central style. The ovary is inferior (below the floral parts) comprising three chambers (trilocular). The berry contains a dry capsule that splits (dehisces) releasing numerous black seed products.

The bulb is placed dormant following the leaves and blossom stem die back and has contractile origins that take it down further into the soil. The flower leaves and stem form in the bulb, to emerge the following season. Most varieties are dormant from summer to late winter, flowering in the spring, though a few species are fall months flowering.

Narcissus Pictures

in questo ango lo sono riuscita a far convivere piante diverse , pur

Hình ảnh: Kỷ niệm 10 năm ngày cưới nên làm gì?

giống hoa Thủy Tiên đa bội Narcissus chất lượng cao

Le più belle varietà di narciso per la casa www.giardinofacile.com