Rosa woodsii

From Hortipedia
(Redirected from Rosa macounii)
Jump to: navigation, search

Hortipedia Commons %LABEL_PRINTING QR Code

Rosa woodsii Lindl.

Rosaceae

Life form: shrub

Exposure: sun - Exposure: half shade   5

Moisture: dry bis Moisture: moderately moist

Soil: sandy loam - Soil: gritty loam

Arrangement: alternate
Leaves: decidious

Shape: elliptic

Division: imparipinnate

Shape: five-stellate
Fruit: hip

63D / e981ab 

Inflorescence: corymb

Petals: single
Habit: not specified

Growth form: not specified

Taxonomy

Divisio:
Magnoliophyta
Subdivisio:
Magnoliophytina
Classis:
Rosopsida
Subclassis:
Rosidae
Superordo:
Rosanae
Ordo:
Rosales

Rosa woodsii, commonly known as western wild rose, is a shrub.

Naming

Rosa woodsii was described by John Lindley in 1820. The name is considered as validly published.

Taxonomy

Rosa woodsii is a species in the genus Rosa which contains approximately 180 to 623 species and belongs to the family of the Rosaceae (Rose Family).

Characteristics

Growth

The shrubs reach heights of 50 to 150 centimetres. The plants reach a width of 1 to 1.5 metres.

Wood and Bark

The bark is reddish brown.

Leaves

Rosa woodsii is deciduous. The imparipinnate leaves are alternate. The elliptic leaflets are serrate and petiolate.

Flowers and Fruits

Rosa woodsii produces corymbs of pink five-stellate flowers from May to July. The plants are hermaphroditic.

The shrubs carry orange hips.

Root System

Distribution

Rosa woodsii is native to Alaska, Canada, the whole of the US with the exception of the Southwest, the Southeast of the US, Florida and North Mexico.

Cultivation

The shrubs prefer a sunny to half-shady situation on dry to moderately moist soil. They prefer sandy-loamy or gritty-loamy soil with a pH between 5 and 8. The plants need a soil depth of at least 30 centimetres for good growth. They tolerate temperatures down to -29°C (USDA zone 5).

Tolerance of special soil conditions

  • medium: calcareous soil

Uses

The recommended planting distance is 1,2 to 1,5 metres.

Maintenance and Propagation

Cultivars

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.

Leaf blotches are a sign of a fungal or bacterial infection. Bacterial spots are rather angular and yellow-rimmed while fungal spots usually are rather rounded with an area of fruiting bodies. Destroy affected parts, additionaly apply fungizide it is is a fungal infection.

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.

Non-commercial Links

This might also interest you

Commercial Links