Narcissus asturianus subsp. jacetanus. Fotografías de José Ricardo

Narcissus /n?:r's?s?s/ is a genus of mainly spring perennial crops in the Amaryllidaceae (amaryllis) family. Various common brands 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 by the cup- or trumpet-shaped corona. The blossoms are usually white or yellow (orange or pink in garden kinds), with either standard or contrasting coloured corona and tepals.

Narcissus were popular in ancient civilisation, both and botanically medicinally, but formally detailed by Linnaeus in his Kinds Plantarum (1753). The genus is generally considered to have about ten areas with around 50 species. The number of species has mixed, depending on how they are classified, anticipated to similarity between varieties 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 exact source of the name Narcissus is undiscovered, but it is linked to a Greek term for intoxicated (narcotic) and the myth of the youth of this name who fell in love with his own representation. The English expression 'daffodil' appears to be produced from "asphodel", with which it was commonly likened.

The kinds are indigenous to meadows and woods in southern European countries and North Africa with a center of variety in the European Mediterranean, particularly the Iberian peninsula. Both cultivated and wild plants have naturalised widely, and were unveiled into the ASIA to the tenth century prior. Narcissi have a tendency to be long-lived bulbs, which propagate by division, but are also insect-pollinated. 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 tourism and urbanisation.

Historical accounts suggest narcissi have been cultivated from the earliest times, but became increasingly popular in Europe after the 16th century and by the late 19th century were an important commercial crop centred mostly on the Netherlands. Today narcissi are popular as cut blooms so that ornamental vegetation 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 categorized into divisions, covering an array of colours and shapes. Like other members of their family, narcissi produce a 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 led to the production of galantamine for the treating Alzheimer's dementia. Long celebrated in literature and art, narcissi are associated with a true number of themes in various cultures, ranging from death to good fortune, and as icons of planting season. The daffodil is the national blossom of Wales and the symbol 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 after flowering to the underground storage light bulb. They regrow in the following calendar year from brown-skinned ovoid light bulbs with pronounced necks, and reach heights of 5-80 cm depending on species. Dwarf kinds such as N. asturiensis have a maximum height of 5-8 cm, while Narcissus tazetta may increase as extra tall as 80 cm.

The crops are scapose, having an individual central leafless hollow bloom stem (scape). Several green or blue-green, thin, strap-shaped leaves come up from the light bulb. The herb stem usually bears a solitary blossom, but once in a while a cluster of bouquets (umbel). The blossoms, that happen to be usually conspicuous and white or yellowish, sometimes both or seldom renewable, contain a perianth of three parts. Closest to the stem (proximal) is a floral pipe above the ovary, then an outside ring made up of six tepals (undifferentiated sepals and petals), and a central disc to conical molded corona. The flowers may hang up down (pendent), or be erect. You will discover six pollen bearing stamens surrounding a central style. The ovary is substandard (below the floral parts) comprising three chambers (trilocular). The berry involves a dried up capsule that splits (dehisces) liberating numerous black seeds.

The bulb is situated dormant following the leaves and blossom stem die back again and has contractile roots that move it down further in to the soil. The flower stem and leaves form in the light, to emerge the following season. Most kinds are dormant from warmer summer months to late winter, flowering in the springtime, though a few kinds are autumn flowering.

Narcissus Pictures

Macizo del Gorbeia: Narcissus minor subsp. minor

Narcissus sección Pseudonarcissi Wikipedia, la enciclopedia libre

Scottish Rock Garden Club gt;Bulb Log

صور زهرة النرجس Forum des Ingénieurs Maghrébins