Narcissus /n?:r's?s?s/ is a genus of mainly spring perennial plant life 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 members of the genus. Narcissus has conspicuous flowers with six petal-like tepals surmounted by way of a cup- or trumpet-shaped corona. The blooms are generally white or yellowish (orange or red in garden kinds), with either standard or contrasting colored 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 generally considered to have about ten sections with about 50 species. The true amount of types has assorted, depending about how they are categorized, as a consequence to similarity between hybridization and types. The genus arose time in the Late Oligocene to Early Miocene epochs, in the Iberian peninsula and adjacent regions of southwest Europe. The exact source of the true name Narcissus is undiscovered, but it is associated with a Greek term for intoxicated (narcotic) and the myth of the junior of this name who fell in love with his own reflection. The English expression 'daffodil' is apparently derived from "asphodel", with which it was commonly compared.
The kinds are native to meadows and woods in southern Europe and North Africa with a center of variety in the Traditional western Mediterranean, the Iberian peninsula particularly. Both cultivated and wild plants have naturalised widely, and were introduced in to the Far East before the tenth century. 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, nematodes and mites. Some Narcissus species have grown to be 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 after the 16th hundred years and by the overdue 19th century were an important commercial crop centred generally on the Netherlands. Today narcissi are popular as lower plants so that ornamental plant life in private and general public gardens. The long history of breeding has resulted in thousands of different cultivars. For horticultural purposes, narcissi are classified into divisions, covering an array of shapes and colours. Like other members with their 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 utilization in traditional healing and has resulted in the production of galantamine for the treatment of Alzheimer's dementia. Long celebrated in fine art and books, narcissi are associated with a true number of themes in different cultures, ranging from loss of life to good fortune, and as symbols of spring. The daffodil is the nationwide rose of Wales and the symbol of tumor charities in many countries. The looks of the wild flowers in springtime is associated with festivals in many places.
Narcissus is a genus of perennial herbaceous bulbiferous geophytes, dying back again after flowering with an underground storage light. They regrow in the following season from brown-skinned ovoid lights with pronounced necks, and reach heights of 5-80 cm with regards to the species. Dwarf kinds such as N. asturiensis have a maximum level of 5-8 cm, while Narcissus tazetta might develop as high as 80 cm.
The crops are scapose, having an individual central leafless hollow blossom stem (scape). Several green or blue-green, narrow, strap-shaped leaves happen from the bulb. The vegetable stem usually bears a solitary bloom, but once in a while a cluster of bouquets (umbel). The blooms, which are conspicuous and white or yellow usually, sometimes both or hardly ever inexperienced, consist of a perianth of three parts. Closest to the stem (proximal) is a floral tube above the ovary, then an exterior ring composed of six tepals (undifferentiated sepals and petals), and a central disc to conical designed corona. The blooms may suspend down (pendent), or be erect. A couple of six pollen bearing stamens encircling a central style. The ovary is substandard (below the floral parts) comprising three chambers (trilocular). The super fruit involves a dried capsule that splits (dehisces) launching numerous black seed products.
The bulb is placed dormant following the leaves and bloom stem die again and has contractile root base that take it down further into the soil. The bloom leaves and stem form in the light bulb, to emerge the following season. Most varieties are dormant from summer season to past due winter, flowering in the springtime, though a few types are autumn flowering.
Tidak ada komentar:
Posting Komentar