Ranunculus repens var. flore-pleno

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Ranunculus repens var. flore-pleno DC.

Ranunculaceae

Life form: perennial
Usage: ornamental plant

Exposure: half shade - Exposure: shade   3

Moisture: moist

Soil: loam - Soil: sandy loam

Arrangement: basal
Leaves: decidious

Shape: obovate

Division: ternate

Shape: five-stellate
Fruit: nutlet

3D / efe981 

Inflorescence: panicle

Petals: double
Habit: not specified

Growth form: not specified

Taxonomy

Divisio:
Magnoliophyta
Subdivisio:
Magnoliophytina
Classis:
Ranunculopsida
Subclassis:
Ranunculidae
Superordo:
Ranunculanae
Ordo:
Ranunculales

Ranunculus repens var. flore-pleno is a perennial with light yellow double flowers.

Naming

Ranunculus repens var. flore-pleno was described by Augustin Pyramus de Candolle. The name is considered as validly published.

Taxonomy

Ranunculus repens var. flore-pleno is a variety in the genus Ranunculus which contains approximately 432 to 2271 species and belongs to the family of the Ranunculaceae (Buttercup Family). The type species of the genus is Ranunculus auricomus.

Characteristics

Growth

The perennials reach heights of 30 to 60 centimetres.

Leaves

Ranunculus repens var. flore-pleno is deciduous. The ternate leaves are basal. The obovate leaflets are petiolate.

Flowers and Fruits

From May to July Ranunculus repens var. flore-pleno produces panicles of semi-double, ligth-yellow five-stellate flowers.

The perennials produce nutlets.

Root System

Distribution

Cultivation

The perennials prefer a half-shady to shady situation on moist soil. The substrate should be loamy or sandy-loamy and comparatively rich. They tolerate temperatures down to -40°C (USDA zone 3).

Classification after Prof. Dr. Sieber

  • open areas with fresh to moist soil

Uses

Suited for nature gardens and for rockeries.

Maintenance and Propagation

Propagate by sowing seed in a cold frame when seeds are ripe or by division in spring or in autumn.

Cultivars

Poisonousness

The sap may irritate the skin

Aeskulap  Please read the health issues note

Pests and Diseases

Honeydew, galls and distorted leaves are a sign for an infestation with aphids. Use an insecticide or control biologically , e.g. with parasitic wasps or predators such as Aphidoletes aphidimyza.

A powdery white coat on the plants indicates an infection with powdery mildew. Remove affected plants and apply a fungicide. To prevent infection improve ventilation, keep the roots moist and do not water the plants from above.

Gnaw marks and slime trails indicate a problem with slugs. Prevent infestation by improving hygiene and by regularly working the soil. In case of an infestation use slug pellets or nematodes to control pest. Handpicking the slug also helps, do this preferably in the evening hours.

Literature

  • Walter Erhardt, Erich Götz, Nils Bödeker, Siegmund Seybold: Der große Zander. Eugen Ulmer KG, Stuttgart 2008, ISBN 978-3-8001-5406-7. (Ger.)
  • Christoper Brickell (Editor-in-chief): RHS A-Z Encyclopedia of Garden Plants. Third edition. Dorling Kindersley, London 2003, ISBN 0-7513-3738-2.

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