Carex buchananii

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Carex buchananii Berggr.

Cyperaceae

Life form: grass

Exposure: sun   7

Moisture: moderately moist

Arrangement: alternate
Leaves: semi-evergreen

Shape: linear

Division: simple

Shape: not specified
Fruit: nut

VII

200D / 47291f 

Inflorescence: spike

Petals: single
Habit: not specified

Growth form: not specified

Taxonomy

Divisio:
Magnoliophyta
Subdivisio:
Magnoliophytina
Classis:
Liliopsida
Subclassis:
Commelinidae
Superordo:
Juncanae
Ordo:
Cyperales

Carex buchananii is a grass.

Naming

Carex buchananii was described by Sven Berggren in 1880. The name is considered as validly published.

Taxonomy

Carex buchananii is a species in the genus Carex which contains approximately 2264 to 2485 species and belongs to the family of the Cyperaceae (Sedge Family). The type species of the genus is Carex hirta.

Characteristics

Carex buchananii - habitus

Growth

The grasses are comparatively fast-growing and reach heights of 50 to 60 centimetres. The plants reach a width of 30 to 60 centimetres.

Leaves

Carex buchananii is semi-deciduous. The red, simple leaves are alternate. They are linear with entire margins and parallel venation. The leaves are around 40 to 50 centimetres large and have a glabrous surface.

Flowers and Fruits

Carex buchananii produces spikes of brown flowers in July.

The grasses produce nuts.

Root System

Distribution

Carex buchananii is native to New Zealand.

Cultivation

The grasses prefer a sunny situation on moderately moist soil. The substrate should have a pH between 8 and 10. They tolerate temperatures down to -18°C (USDA zone 7).

Classification after Prof. Dr. Sieber

  • open areas
  • rockeries

Uses

Carex buchananii is considered a collector's perennial. The ornamental value lies especially in the attractive winter aspect. The recommended planting distance is 35 centimetres, the grasses are best planted in groups of 5 to 10. Suited for rockeries and for beds and borders, as well as suited as a neighbour to roses, container plant, slope plant and as specimen plant.

Maintenance and Propagation

  • Winter protection is advisable.
  • Cut back as necessary.

Propagate by division.

Cultivars

Pests and Diseases

Brown, orange or yellowish pustules on shoots and on the leaves lower surfaces are very likely caused by a fungal infestation (rust). Remove affected parts and apply fungicide. Also improve ventilation and reduce humidity.

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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