Australian Native Plants

  Juncus kraussii (Jointed Rush)


Juncus kraussii photo
Sea Rush (Juncus kraussii) is about 1.3 m tall. Paruna Reserve, Como NSW Australia,

Photograph by John Tann from Sydney,. Some rights reserved.    (view image details)

Juncus kraussii photo
Sea Rush, Juncus kraussii, growing just beyond the mangroves and at the edge of a tidal flat. Paruna Reserve, Como, NSW

Photograph by John Tann from Sydney,. Some rights reserved.    (view image details)

Juncus kraussii photo
Sea Rush, Juncus kraussii. Paruna Reserve, Como, NSW

Photograph by John Tann from Sydney,. Some rights reserved.    (view image details)



Credits:
Description and Habitat information is sourced from: Agriculture and Fisheries, Queensland Government, Common saltmarsh plants of Queensland, https://www.publications.qld.gov.au/dataset/common-saltmarsh-plants-of-queensland Licensed under Creative Commons CC BY 4.0 license.


Growth Characteristics information is sourced from: State Flora Catalog, Government of South Australia Licensed under Creative Commons CC BY 4.0 license.



JOINTED RUSH FACTS

distribution map showing range of Juncus kraussii in Australia

Map is from The Atlas of Living Australia web site, licensed under Creative Commons Attribution 3.0 Australia License


Common Name
Jointed Rush

Other Names
Sea Rush

Description
Jointed Rush is a perennial rush that grows to 50 cm to 1.2 m tall, with a rhizomatous habit. It often grows in thick tussocks or clumps.
The plant's stems are cylindrical to slightly flattened in cross-section, and are 1.5-3 mm in diameter.
Flowers grow in clusters, with brown perianths and 2-3.5 mm long segments. There are 4-6 flowers in each cluster and 15-50 clusters per inflorescence. The plant flowers throughout the year.

Habitat
wet areas such as swamps, saltmarshes, brackish estuaries.

Distribution
Found in all states of Australia - Western Australia, Victoria, South Australia, New South Wales, Queensland, Tasmania, Northern Territory,

Growth Characteristics
Height (m): 0.5 - 1
Spread (m): 0.5 - 1
Soil Texture: sand, loam, clay
Soil pH: acid soils, neutral soils, alkaliine soils
Frost Sensitivity: resistant
Minimum Rainfall (mm): 450
Flower Colour: brown
Flower Season: frequent

(source: SA State Flora Catalog)



Classification
Class:Liliopsida
Order:Poales
Family:Juncaceae
Genus:Juncus
Species:kraussii
Common Name:Jointed Rush


Relatives in same Genus
  Juncus bufonius