Freesia is a genus of herbaceous perennial flowering plants in the family Iridaceae, first described as a genus in 1866 by Chr. Fr. Echlon (1795-1868) and known as after German botanist and doctor Friedrich Freese (1794-1878). It is native to the eastern part of southern Africa, from Kenya south to South Africa, most varieties being within Cape Provinces. Species of the previous genus Anomatheca are now included in Freesia. The crops often called "freesias", with fragrant funnel-shaped plants, are cultivated hybrids of a number of Freesia species. Some other types are also cultivated as ornamental vegetation.
They may be herbaceous plants which increase from a conical corm 1-2.5 cm size, which directs up a tuft of thin leaves 10-30 cm long, and a sparsely branched stem 10-40 cm large bearing a few leaves and a loose one-sided spike of plants with six tepals. Many types have fragrant narrowly funnel-shaped plants, although those formerly positioned in the genus Anomatheca, such as F. laxa, have smooth flowers. Freesias are used as food plant life by the larvae of some Lepidoptera kinds including Large Yellow Underwing.
CULTIVATION AND USES
The plants usually called "freesias" derive from crosses manufactured in the 19th century between F. refracta and F. leichtlinii. Numerous cultivars have been bred from these types and the pink- and yellow-flowered types of F. corymbosa. Modern tetraploid cultivars have blooms which range from white to yellowish, green, red and blue-mauve. They can be mostly cultivated properly in holland by about 80 growers.[3] Freesias can be quickly increased from seed. Due to their specific and pleasing scent, they are often used in hand ointments, shampoos, candles, etc.[citation needed], however, the blooms are mainly utilized in wedding bouquets. They could be planted in the land in USDA Hardiness Areas 9-10 (i.e. where in fact the temperature will not show up below about -7 ?C (20 ?F)), and in the spring and coil in Zones 4-8.
Freesia laxa (previously called Lapeirousia laxa or Anomatheca cruenta) is one of the other species of the genus which is often cultivated. Smaller than the scented freesia cultivars, it has flat somewhat than cup-shaped blossoms. Extensive 'forcing' of this bulb occurs in two Moon Bay in California where several growers chill the lights in proprietary methods to satisfy chilly dormancy which results in development of buds in a predicted quantity of weeks - often 5 weeks at 55 ?F (13 ?C).
Herbaceous vegetation (in botanical use frequently simply herbs) are plant life which may have no continual woody stem above floor. Herbaceous crops may be annuals, biennials or perennials. Total annual herbaceous plants pass away completely at the end of the growing season or when they may have flowered and fruited, plus they then increase again from seed. Herbaceous perennial and biennial plant life may have stems that die by the end of the growing season, but parts of the plant make it through under or close to the bottom from season to season (for biennials, until the next growing season, when they bloom and perish). New expansion develops from living cells left over on or under the bottom, including origins, a caudex (a thickened portion of the stem at walk out) or numerous kinds of underground stems, such as light bulbs, corms, stolons, rhizomes and tubers. Types of herbaceous biennials include carrot, parsnip and common ragwort; herbaceous perennials include potato, peony, hosta, mint, most ferns and most grasses. By contrast, non-herbaceous perennial vegetation are woody plants which have stems above earth that remain alive through the dormant season and expand shoots another calendar year from the above-ground parts - these include trees, shrubs and vines.
Hoa ưu đàm là hoa gì và vì sao gọi là ưu đàm bà la hoa
Là hoa hậu có gì sướng? Không đủ bản lĩnh, cũng dễ
Kỹ thuật ươm hạt giống cây hoa Tử Đằng tại Việt
Hoa Ưu Đàm là gì Hình ảnh Hoa Ưu Đàm Hoa Ưu Đàm 3
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