Gypsophila davurica

Famille: Caryophyllaceae, Genre: Gypsophila
Vivace (0.6m de haut).

Habitat

Exposition
Plein soleil
Humidité
Sol sec à moyen.
Sol
Tous sols. Nécessite un sol drainant.
pH
Sol acide ou calcaire
Habitat originel
Steppe meadows and gravelly steppe slopes[74]. Hills, dry rocky slopes, steppes and fixed dunes[266].
Origine géographique
E. Asia - northern China, Mongolia, Siberia.

Dangers connus

  • Although no mention has been seen for this species, at least one member of this genus has a root that is rich in saponins [2].
  • Although toxic, these substances are very poorly absorbed by the body and so tend to pass through without causing harm [65].
  • They are also broken down by heat so a long slow baking can destroy them .
  • Saponins are found in many plants, including several that are often used for food, such as certain beans .
  • It is advisable not to eat large quantities of food that contain saponins .
  • Les saponines sont beaucoup plus toxique pour certains animaux, comme les poissons; des tribus de pêcheurs en ont traditionnellement mis de grandes quantitié dans les rivières et les lacs pour droguer ou tuer les poissons [K].

Comestibilité

  • Racine - cuite .
  • It requires treatment and is used as an emergency food when all else fails [177].
  • The type of treatment is not given, it is likely to be some sort of leaching or a long cooking period in order to remove or destroy saponins [K].

Culture

  • We have very little information on this species and do not know if it will be hardy in Britain, though judging by its native range it should succeed outdoors in at least the milder areas of this country .
  • It is likely to require a dry, sunny position in a well-drained soil [K].
  • Les notes suivantes sont basées sur les besoins généraux du genre .
  • Requires a well-drained soil in full sun [1].
  • Lime tolerant, it grows well in a dryish soil [1].

Propagation

  • Seed - we have no information for this species but suggest sowing the seed in a greenhouse in spring .
  • When they are large enough to handle, prick the seedlings out into individual pots and, if growth is sufficient, plant them out into their permanent positions in the summer .
  • If the plants are too small to plant out, grow them on in the greenhouse for their first winter and then plant them out in late spring or early summer .
  • Division au printemps ou à l'automne .
  • Les plus grandes divisions peuvent être replantées directement à leur place définitive, il vaut mieux mettre en pot les plus petites divisions et les cultiver sous chassis jusqu'à ce que les racines se soient développées .
  • Plantez les au printemps .
  • Basal cuttings before the plant flowers .
  • Harvest the shoots when they are about 10cm long with plenty of underground stem .
  • Rempotez les dans des pots individuels et gardez les sous une ombre légère sous chassis ou sous serre jusqu'à ce que les racines se soient bien développées .
  • Replantez les en été .
  • Root cuttings .

Pollinisation

Type de fleur
Hermaphrodite (les fleurs ont des organes mâles et femelles)
Auto-fertile
Non
Pollinisateurs
Insectes

Divers

Pollution
Non
Autres réferences
[74, 266]

Réferences

[1] F. Chittendon. RHS Dictionary of Plants plus Supplement. 1956 1951.
Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaces in 1992 by a new dictionary (see [200]).
[2] Hedrick. U. P. Sturtevant's Edible Plants of the World. 1972.
Lots of entries, quite a lot of information in most entries and references.
[65] Frohne. D. and Pfänder. J. A Colour Atlas of Poisonous Plants. 1984.
Brilliant. Goes into technical details but in a very readable way. The best work on the subject that I've come across so far.
[74] Komarov. V. L. Flora of the USSR. 1968.
An immense (25 or more large volumes) and not yet completed translation of the Russian flora. Full of information on plant uses and habitats but heavy going for casual readers.
[177] Kunkel. G. Plants for Human Consumption. 1984.
An excellent book for the dedicated. A comprehensive listing of latin names with a brief list of edible parts.
[266] Flora of China 1994.
On-line version of the Flora - an excellent resource giving basic info on habitat and some uses.