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Narcissus /n?:r's?s?s/ is a genus of predominantly spring perennial vegetation in the Amaryllidaceae (amaryllis) family. Various common labels including daffodil,[notes 1] daffadowndilly,[3] narcissus, and jonquil are 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 blossoms are generally white or yellow (orange or green in garden types), with either uniform or contrasting coloured corona and tepals.

Narcissus were well known in old civilisation, both and botanically medicinally, but formally explained by Linnaeus in his Kinds Plantarum (1753). The genus is generally thought to have about ten areas with about 50 species. The amount of varieties has mixed, depending about how they are categorized, due to similarity between types and hybridization. The genus arose some time in the Late Oligocene to Early Miocene epochs, in the Iberian peninsula and adjacent areas of southwest Europe. The precise source of the name Narcissus is anonymous, but it is often linked to a Greek phrase for intoxicated (narcotic) and the myth of the young ones of this name who fell in love with his own representation. The English phrase 'daffodil' is apparently derived from "asphodel", with which it was commonly likened.

The varieties are native to meadows and woods in southern European countries and North Africa with a centre of variety in the European Mediterranean, the Iberian peninsula particularly. Both wild and cultivated plants have naturalised widely, and were introduced 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, nematodes and mites. Some Narcissus species have grown to be extinct, while some are threatened by increasing urbanisation and tourism.

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 past due 19th century were an important commercial crop centred mostly on holland. Today narcissi are popular as cut blossoms and as ornamental plant life in private and public gardens. The long history of breeding has resulted in a large number of different cultivars. For horticultural purposes, narcissi are grouped 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 ingested inadvertently. This property has been exploited for medicinal used in traditional healing and has led to the production of galantamine for the treating Alzheimer's dementia. Long celebrated in artwork and books, narcissi are associated with a true number of themes in different cultures, ranging from fatality to fortune, and as symbols of planting season. The daffodil is the national flower of Wales and the image of cancer tumor charities in many countries. The appearance of the crazy flowers in planting season is associated with celebrations in many places.

Narcissus is a genus of perennial herbaceous bulbiferous geophytes, dying back again after flowering with an underground storage bulb. They regrow in the next 12 months from brown-skinned ovoid lights with pronounced necks, and reach heights of 5-80 cm depending on species. Dwarf types such as N. asturiensis have a maximum height of 5-8 cm, while Narcissus tazetta might grow as large as 80 cm.

The plants are scapose, having an individual central leafless hollow blossom stem (scape). Several green or blue-green, slim, strap-shaped leaves come up from the light. The flower stem usually bears a solitary bloom, but occasionally a cluster of plants (umbel). The plants, which can be conspicuous and white or yellow usually, sometimes both or rarely green, consist of a perianth of three parts. Closest to the stem (proximal) is a floral pipe above the ovary, then an outer ring made up of six tepals (undifferentiated sepals and petals), and a central disk to conical molded corona. The bouquets may hang down (pendent), or be erect. There are six pollen bearing stamens encircling a central style. The ovary is second-rate (below the floral parts) consisting of three chambers (trilocular). The fruit includes a dried out capsule that splits (dehisces) releasing numerous black seed products.

The bulb lays dormant after the leaves and bloom stem die back and has contractile root base that pull it down further in to the soil. The blossom leaves and stem form in the bulb, to emerge the next season. Most kinds are dormant from summer time to later winter, flowering in the spring and coil, though a few varieties are autumn flowering.

Narcissus Pictures

Dosiero:Narcissus.jpg Vikipedio

Narcissus assoanus Wikipedia

File:Narcissus medioluteus2.jpg Wikipedia

File:Narcissus 39;Segovia39; 2013 071.JPG Wikimedia Commons