Gentiana

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Gentiana
Gentiana verna
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Gentianales
Family: Gentianaceae
Genus: Gentiana L.
Species

See text.

Gentiana (pron.: /ˌdʒɛntʃiˈeɪnə/)[1] is a genus of flowering plants belonging to the gentian family (Gentianaceae), tribe Gentianeae and monophyletic subtribe Gentianinae. With about 400 species it is considered a large genus. They are notable for their mostly large, trumpet-shaped flowers, typically of an intense blue.[2]

Contents

Habitat [edit]

Gentiana frigida

This is a cosmopolitan genus, occurring in alpine habitats of temperate regions of Asia, Europe and the Americas. Some species also occur in northwest Africa, eastern Australia and New Zealand. They consist of annual, biennial and perennial plants. Some are evergreen, others are not.

Many gentians are difficult to grow outside their wild habitat, but several species are available in cultivation. Gentians are fully hardy and like full sun or partial shade, and neutral to acid soil that is rich in humus and well drained. They are popular in rock gardens.

The name is a tribute to Gentius, an Illyrian king who was thought[3] to have found out that the herbs had tonic properties.

Uses [edit]

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Gentian root is used in the production of Gentian, a distilled beverage produced in the Alps. Some species are harvested for the manufacture of aperitif wines, liqueurs, tonics and flavouring, as in bitters. The soft drink "Moxie" contains "Gentian Root Extractives".

The French liqueurs Salers, Aveze and Suze are made principally from yellow gentian. The Italian brewery Birra Del Borgo brews a beer, Genziana, with gentian as an adjunct.

Australian Lemon and Lime Bitters produced by the Bundaberg brewing company lists "Gentian Root" as one of the ingredients in its "Bitters Brew".

The Polish vodka Zoladkowa Gorzka is flavoured with gentian. Likewise it is an ingredient in the Italian liqueur Aperol.

The popular aromatic Angostura bitters lists Gentian as fourth on its ingredients list.

Gentian is used in herbal medicine to treat digestion problems such as loss of appetite, fullness, intestinal gas, diarrhea, gastritis, heartburn, and vomiting.[4]

Species [edit]

General [edit]

Gentians have opposite leaves that are sometimes arranged in a basal rosette, and trumpet-shaped flowers that are usually deep blue or azure, but may vary from white, creamy and yellow to red. Many species also show considerable polymorphism with respect to flower color. Typically, blue-flowered species predominate in the Northern Hemisphere, with red-flowered species dominant in the Andes (where bird pollination is probably more heavily favored by natural selection). White-flowered species are scattered throughout the range of the genus but dominate in New Zealand. All gentian species have terminal tubular flowers and most are pentamerous; i.e. with 5 corolla lobes (petals), and 5 sepals, but 4–7 in some species. The style is rather short or absent. The corolla shows folds (= plicae) between the lobes. The ovary is mostly sessile and has nectary glands.

Species classification [edit]

Formerly placed here [edit]

[5]

[icon] This section requires expansion. (April 2012)

References [edit]

  1. ^ Sunset Western Garden Book, 1995:606–607
  2. ^ RHS A-Z encyclopedia of garden plants. United Kingdom: Dorling Kindersley. 2008. p. 1136. ISBN 1405332964. 
  3. ^ A manual of the flowering plants of California by Willis Linn Jepson
  4. ^ http://www.webmd.com/vitamins-supplements/ingredientmono-716-GENTIAN.aspx?activeIngredientId=716&activeIngredientName=GENTIAN
  5. ^ "The Plant List: A working list of all plant species". 

External links [edit]

Wikimedia Commons has media related to: Gentiana
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