lundi 10 septembre 2007

Allium

Allium aucheri



Allium olympicum



Allium cappadocicum










Allium akaka




Allium karamanoglui









Allium is the onion genus,, with about 1250 species, making it one of the largest plant genera in the world. They are perennial bulbous plants that produce chemical compounds that give them a characteristic onion or garlic taste and odor, and many are used as food plants. Allium is classified in family Alliaceae although some classifications have included it in the lily family (Liliaceae).

Allium species occur in temperate climates of the northern hemisphere, except for a few species occurring in Chile (as Allium juncifolium), Brazil (Allium sellovianum) or tropical Africa (Allium spathaceum). They can vary in height between 5 cm and 150 cm. The flowers form an umbel at the top of a leafless stalk. The bulbs vary in size between species, from very small (around 2–3 mm in diameter) to rather big (8–10 cm). Some species (such as Welsh onion, A. fistulosum) develop thickened leaf-bases rather than forming bulbs as such.

Most bulbous alliums increase by forming little bulbs or "offsets" around the old one, as well as by seed. Several species can form many bulbils (tiny bulbs) in the flowerhead; in the so-called "tree onion" (A. cepa Proliferum Group) the bulbils are few, but large enough to be used for pickling.

Members of the genus include many valued vegetables such as onions, shallots, leeks and herbs such as garlic and chives. A strong "oniony" odor is characteristic of the whole genus, but not all members are equally flavorful.

Some Allium species, including A. cristophii and A. giganteum, are used as border plants for their flowers, and their "architectural" qualities. Several hybrids have been bred, or selected, with rich purple flowers. Allium hollandicum 'Purple Sensation' is one of the most popular and has been given an Award of Garden Merit (H4). By contrast, other species (such as the invasive Allium triquetrum) can become troublesome garden weeds.

Various Allium species are used as food plants by the larvae of some Lepidoptera including Cabbage Moth, Common Swift moth (recorded on garlic), Garden Dart moth, Large Yellow UnderwingNutmeg moth, Setaceous Hebrew Character moth, Turnip Moth and Schinia rosea, a moth which feeds exclusively on Allium spp.

Kingdom: Plantae
Division: Magnoliophyta
Class: Liliopsida
Order: Asparagales
Family: Alliaceae
Genus: Allium

Ajuga chamaepitys


Ajuga chamaepitys is a herbaceous flowering plant native to Europe. This plant is often used as medicinal and ornamental plant.

Both in foliage and blossom it is very unlike its near relative, the Common Bugle, forming a bushy, herbaceous plant, 3 to 6 inches high, the four-cornered stem, hairy and viscid, generally purplish red, being much branched and densely leafy. Except the lowermost leaves, which are lanceshaped and almost undivided, each leaf is divided almost to its base into three very long, narrow segments, and the leaves being so closely packed together, the general appearance is not altogether unlike the long, needle-like foliage of the pine, hence the plant has received a second name- Ground Pine. The flowers are placed singly in the axils of leaf-like bracts and have bright yellow corollas, the lower lip spotted with red. They are in bloom during May and June.

The whole plant is very hairy, with stiff hairs, which consist of a few long joints. It has a highly aromatic and turpentiny odour and taste.

---Uses---Ground Pine has stimulant, diuretic and emmenagogue action and is considered by herbalists to form a good remedy, combined with other suitable herbs, for gout and rheumatism and also to be useful in female disorders, an infusion of 1 OZ. of the dried herb to 1 pint of boiling water being recommended, taken in tablespoonful doses, frequently repeated.

The herb was formerly regarded almost as a specific in gouty and rheumatic affections, the young tops, dried and reduced to powder being employed. It formed an ingredient of the once famous Portland Powder.

It likewise operates powerfully by urine, removing obstructions and is serviceable in dropsy, jaundice and ague, reputed great cures having been performed by its use, either in infusion, or powder.

Kingdom: Plantae
Division: Magnoliophyta
Class: Magnoliopsida
Order: Lamiales
Family: Lamiaceae
Genus: Ajuga

Agrostemma githago


Corncockle (Agrostemma githago - also Corn cockle and Corn-cockle) is a slender pink flower of European corn fields. In the 19th century, it was reported as a very common weed of wheat fields and its seeds were inadvertently included in harvested wheat seed and then re-sown the following season. It is very likely that until the 20th century, most wheat contained some corncockle seed. It is now present in many parts of the temperate world as an alien species, probably introduced with imported European wheat. It is known to occur throughout much of the USA and parts of Canada, parts of Australia and New Zealand. In parts of Europe such as the UK, intensive mechanised farming has put the plant at risk and it is now uncommon or local. This is partly due to increased use of herbicides but probably much more to do with changing patterns of agriculture with most wheat now sown in the autumn as winter wheat and then harvested before any corncockle would have flowered or set seed.


It is a stiffly erect plant up to 1 metre tall and covered with fine hairs. Its few branches are each tipped with a single deep pink to purple flower. The flowers are scentless, are 25 mm to 50 mm across and are produced in the summer months - May to September in the northern hemisphere, November to March in the southern hemisphere. Each petal bears 2 or 3 discontinous black lines. The five narrow pointed sepals exceed the petals and are joined at the base to form a rigid tube with 10 ribs. Leaves are pale green, opposite, narrowly lanceolate, held nearly erect against stem and are 45 mm to 145 mm long. Seeds are produced in a many-seeded capsule. All parts of the plant are reported to be poisonous.

It can be found in fields, roadsides, railway lines, waste places, and other disturbed areas.

Kingdom: Plantae
Division: Magnoliophyta
Class: Mangnoliopsida
Order: Caryophyllales
Family: Caryophyllaceae
Genus: Agrostemma
Species: A. githago

dimanche 9 septembre 2007

Adonis flammea


Adonis is a genus of about 20-30 species of flowering plants in to the family Ranunculaceae, native to Europe and Asia.

The species grow to 10-40 cm in height, with feathery, finely divided leaves. Their flowers are red, yellow or orange and have 5-30 petals.

Selected species

Kingdom: Plantae
Division: Magnoliophyta
Class: Magnoliopsida
Order: Ranunculales
Family: Ranunculaceae
Genus: Adonis











Acinos alpinus




Acinos is a genus of ten species of annual and short-lived evergreen perennial woody plants native to southern Europe and western Asia. Its name comes from the Greek word akinos, the name of a small aromatic plant. They are small, tufted, bushy or spreading plants growing to 10-45 cmtall. The 2-lipped, tubular flowers are borne on erect sprikes in mid-summer.

Selected species
Kingdom: Plantae
Division: Magnoliophyta
Class: Magnoliopsida
Order: Lamiales
Family: Lamiaceae
Genus: Acinos L




















Acantholimon puberulum



Acantholimon (Prickly thrift) is a genus of small flowering plants within the plumbago or leadwort family, Plumbaginaceae. They are distributed from southeastern Europe to central Asia and also in South America, but also cultivated elsewhere in rock gardens.

Kingdom: Plantae
Division: Magnoliophyta
Class: Magnoliopsida
Order: Caryophyllales
Family: Plumbaginaceae
Genus: Acantholimon
Boiss.