Thursday, 28 June 2012

FFF32 - HYACINTH

Hyacinthus is a small genus of bulbous flowering plants in the family Asparagaceae, subfamily Scilloideae. Plants are commonly called hyacinths. Hyacinthus is native to the eastern Mediterranean (from south Turkey to northern Israel), north-east Iran, and Turkmenistan.

Three species are within the genus Hyacinthus:
Hyacinthus litwinowii
Hyacinthus orientalis - Common, Dutch or Garden Hyacinth
Hyacinthus transcaspicus.

Some authorities place H. litwonowii and H. transcaspicus in the related genus Hyacinthella, which would make Hyacinthus a monotypic genus.The Dutch, or Common Hyacinth of house and garden culture (H. orientalis, native to southwest Asia) was so popular in the 18th century that over 2,000 cultivars were cultivated in the Netherlands, its chief commercial producer.

This hyacinth has a single dense spike of fragrant flowers in shades of red, blue, white, orange, pink, violet, or yellow. A form of the common hyacinth is the less hardy and smaller blue- or white-petalled Roman hyacinth of florists. These flowers should have indirect sunlight and are to be moderately watered.Several types of brodiea, squill, and other plants that were formerly classified in the lily family and have flower clusters borne along the stalk also have common names with hyacinth in them.

Hyacinths should also not be confused with the genus Muscari, which are commonly known as grape hyacinths.Hyacinths are sometimes associated with rebirth. The Hyacinth flower is used in the Haftseen table setting for the Persian New Year celebration Norouz held during the Spring Equinox. Hyacinth bulbs are poisonous; they contain oxalic acid. Handling hyacinth bulbs can cause mild irritation to people with sensitive skin. Protective gloves may be worn to avoid irritation.


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Thursday, 21 June 2012

FFF31 - CACTUS FLOWERS

A photo of a lovely Echinopsis spp cactus flowering in the Royal Botanic Gardens in Melbourne. The only cactus genus that is more confusing than Echinopsis is that of Opuntia. In both cases, there is a great number of species (over 100) and a tremendous amount of variation.

In Echinopsis plants range from very small, flattened-globose plants to quite large, treelike giants. As a result, there is a long list of synonymous names for many of the species. Some synonyms referring to other synonyms that refer to a subspecies of some seemingly distinct species. Sorting through these names often feels like a wild goose chase and is quite frustrating.  In more recent thinking, the previous two genera of Trichocereus and Lobivia are included with Echinopsis. However, it is not at all uncommon for enthusiasts to use all three names in discussion even if their labels read Echinopsis!

This usage reflects the general (inexact) situation that the larger, columnar members are distinguished as Trichocereus while Lobivia includes a select group of smaller, not-as-spiny plants which typically flower from low on the plant similar to most Rebutia species. This leaves the bulk of plants referred to as Echinopsis to be mostly spiny, ribbed, globose plants.

The main factor that ties these plants together are their very large, showy flowers. These flowers are all very similar in structure – funnel shaped, with hairy/wooly scaled floral tubes which give rise to hairy, globular fruit filled with a soft, mushy pulp. The flowers seldom last more than a single day and may be diurnal or nocturnal depending on the species. These species hybridise easily and have resulted in a tremendous number of hybrids that some cactus growers specialise in or grow exclusively. There are certainly enough hybrids to keep even ardent hobbyists busy.

Because of their exceptional flowers, many Echinopsis species are found in garden centres and collections world-wide. The larger species (aka Trichocereus) are also popular landscape plants in warmer parts of the world. While there are a number of species common in cultivation, there are as many or more unknown hybrids in the trade. These hybrids are easy-to-grow and produce nice flowers, but buyer beware if exact names are desired. Plants of this genus are widespread throughout South America and inhabit a wide range of habitats and climates.

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Thursday, 14 June 2012

FFF30 - HIPPEASTRUM

Hippeastrum is a genus of about 90 species and 600+ hybrids and cultivars of bulbous plants in the family Amaryllidaceae, subfamily Amaryllidoideae, native to tropical and subtropical regions of the Americas from Argentina north to Mexico and the Caribbean. Some species are grown for their large showy flowers.

For many years there was confusion amongst botanists over the generic names Amaryllis and Hippeastrum, one result of which is that the common name "amaryllis" is mainly used for cultivars of this genus, which are widely used as indoor flowering bulbs. The generic name Amaryllis applies to bulbs from South Africa, usually grown outdoors.

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Thursday, 7 June 2012

FFF29 - ECHINACEA

Echinacea is a genus of herbaceous flowering plants in the daisy family, Asteraceae. The nine species it contains are commonly called purple coneflowers. They are endemic to eastern and central North America, where they are found growing in moist to dry prairies and open wooded areas.

They have large, showy heads of composite flowers, blooming from early to late summer. The generic name is derived from the Greek word ἐχῖνος (echinos), meaning "sea urchin," due to the spiny central disk. Some species are used in herbal medicines and some are cultivated in gardens for their showy flowers. A few species are of conservation concern.

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