Narcissus asturianus subsp. jacetanus. Fotografías de José Ricardo

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

Narcissus were popular in ancient civilisation, both and botanically medicinally, but formally explained by Linnaeus in his Types Plantarum (1753). The genus is generally thought to have about ten sections with around 50 species. The amount of species has varied, depending how they are categorised, a consequence of to similarity between hybridization and kinds. The genus arose some right 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 unfamiliar, but it is often linked to a Greek word for intoxicated (narcotic) and the misconception of the young ones of that name who fell in love with his own representation. The English expression 'daffodil' appears to be derived from "asphodel", with which it was commonly compared.

The species are native 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 wild and cultivated plants have naturalised widely, and were introduced into the Far East prior to the tenth century. Narcissi have a tendency to be long-lived bulbs, which propagate by division, but are also insect-pollinated. 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 earliest times, but became ever more popular in Europe following the 16th century and by the overdue 19th century were an important commercial crop centred mostly on the Netherlands. Today narcissi are popular as slash blossoms as ornamental plant life in private and open public gardens. The long history of breeding has resulted in a large number of different cultivars. For horticultural purposes, narcissi are categorised into divisions, covering a variety of shapes and colours. Like other members of these family, narcissi create 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 resulted in the production of galantamine for the treatment of Alzheimer's dementia. Long celebrated in books and skill, narcissi are associated with a true number of themes in different cultures, ranging from loss of life to good fortune, and as icons of planting season. The daffodil is the nationwide rose of Wales and the sign of cancer tumor charities in many countries. The appearance of the outrageous flowers in springtime is associated with festivals in many places.

Narcissus is a genus of perennial herbaceous bulbiferous geophytes, dying again after flowering for an underground storage light bulb. They regrow in the next 12 months from brown-skinned ovoid light bulbs with pronounced necks, and reach heights of 5-80 cm with respect to the species. Dwarf kinds such as N. asturiensis have a maximum level of 5-8 cm, while Narcissus tazetta may increase as high as 80 cm.

The plants are scapose, having an individual central leafless hollow bloom stem (scape). Several green or blue-green, thin, strap-shaped leaves occur from the light bulb. The plant stem usually bears a solitary rose, but occasionally a cluster of plants (umbel). The blossoms, that are conspicuous and white or yellow usually, both or seldom green sometimes, contain a perianth of three parts. Closest to the stem (proximal) is a floral tube above the ovary, then an external ring made up of six tepals (undifferentiated sepals and petals), and a central disc to conical shaped corona. The flowers may hang up down (pendent), or be erect. You can find six pollen bearing stamens encircling a central style. The ovary is inferior (below the floral parts) consisting of three chambers (trilocular). The berry includes a dried out capsule that splits (dehisces) releasing numerous black seed products.

The bulb is dormant after the leaves and rose stem die back again and has contractile root base that take it down further in to the soil. The blossom leaves and stem form in the light, to emerge the next season. Most types are dormant from warmer summer months to overdue winter, flowering in the springtime, though a few kinds are fall months flowering.

Narcissus Pictures

Narcissus minor Narcissus jacetanus

.org/pbswiki/files/Narcissus/Narcissus_alpestris.jpg pbs wiki

Todos los Narcisos de Aragón. Fotografías de José Ricardo Gracia

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