Narcissus asturianus subsp. jacetanus. Fotografías de José Ricardo

Narcissus /n?:r's?s?s/ is a genus of mainly spring perennial vegetation in the Amaryllidaceae (amaryllis) family. Various common labels 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 plants are usually white or yellowish (orange or pink in garden varieties), with either standard or contrasting coloured corona and tepals.

Narcissus were well known in traditional civilisation, both medicinally and botanically, but formally described by Linnaeus in his Varieties Plantarum (1753). The genus is normally considered to have about ten sections with around 50 species. The true number of types has assorted, depending on how they are categorized, scheduled to similarity between species and hybridization. The genus arose some right amount of time in the Late Oligocene to Early Miocene epochs, in the Iberian peninsula and adjacent regions of southwest Europe. The precise origin of the true name Narcissus is anonymous, but it is linked to a Greek expression for intoxicated (narcotic) and the myth of the junior of this name who fell in love with his own reflection. The English term 'daffodil' appears to be produced from "asphodel", with which it was likened commonly.

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

Historical accounts suggest narcissi have been cultivated from the initial times, but became increasingly popular in Europe after the 16th hundred years and by the late 19th century were an important commercial crop centred primarily on the Netherlands. Today narcissi are popular as slice blooms so that as ornamental crops in private and general public gardens. The long history of breeding has resulted in a large number of different cultivars. For horticultural purposes, narcissi are labeled into divisions, covering a wide range of colours and shapes. Like other members with their family, narcissi create a true number of different alkaloids, which provide some protection for the plant, but may be poisonous if accidentally ingested. This property has been exploited for medicinal use within traditional healing and has resulted in the production of galantamine for the treating Alzheimer's dementia. Long celebrated in literature and art work, narcissi are associated with a number of themes in various cultures, ranging from death to good fortune, and as symbols of spring. The daffodil is the national flower of Wales and the symbol of tumors charities in many countries. The looks of the outrageous flowers in spring is associated with celebrations in many places.

Narcissus is a genus of perennial herbaceous bulbiferous geophytes, dying back after flowering to the underground storage bulb. They regrow in the next yr from brown-skinned ovoid lights with pronounced necks, and reach heights of 5-80 cm depending on species. Dwarf varieties such as N. asturiensis have a maximum height of 5-8 cm, while Narcissus tazetta may develop as tall as 80 cm.

The crops are scapose, having a single central leafless hollow blossom stem (scape). Several green or blue-green, narrow, strap-shaped leaves arise from the bulb. The seed stem usually bears a solitary flower, but occasionally a cluster of plants (umbel). The blooms, which can be conspicuous and white or yellowish usually, sometimes both or hardly ever renewable, contain a perianth of three parts. Closest to the stem (proximal) is a floral pipe above the ovary, then an exterior ring composed of six tepals (undifferentiated sepals and petals), and a central disk to conical molded corona. The plants may hang down (pendent), or be erect. A couple of six pollen bearing stamens bordering a central style. The ovary is second-rate (below the floral parts) consisting of three chambers (trilocular). The fruit involves a dried capsule that splits (dehisces) liberating numerous black seeds.

The bulb is situated dormant after the leaves and blossom stem die again and has contractile origins that pull it down further into the soil. The bloom leaves and stem form in the light, to emerge the next season. Most varieties are dormant from summer season to later winter, flowering in the spring, though a few types are fall flowering.

Narcissus Pictures

Narcissus asturiensis subsp. jacetanus IMG_2805 Flickr Photo

Class 56 Alpine Garden Society Online Show, 2011 Alpine Garden

Narcissus italicus 2aiA colored tazettalike flowers. Petals cream

صور زهرة النرجس Forum des Ingénieurs Maghrébins