Classification
Class
Magnoliopsida Brongn.
Order
Poales Small
Family
Juncaceae Juss.
Genus
Juncus L.
 Subordinate Taxa
 Nomenclature
Scientific Name:
Juncus effusus L., Sp. Pl. 326 (1753)
Synonymy:
  • = Juncus communis E.Mey. (1819) nom. illeg.
Vernacular Name(s):
Common rush; Leafless rush; soft rush
 Description

Dense tufts; rhizome short. Stems 30–120 cm × 1.5–3 mm, soft and easily split or compressed, bright- or yellow-green, smooth, shining, pith continuous, cobwebby. Basal sheaths reddish-brown closely appressed to stem. Inflorescence many-flowered, base of subtending floral bract narrow, green. Tepals 2–2.5 mm long, ± equal, acuminate. Stamens3. Capsule 2–2.5mm long, < or occasionally = tepals, ovoid, flattened at top, very light brown.

[From: Healy and Edgar (1980) Flora of New Zealand. Volume 3.]

 Biostatus
Exotic
Number of subspecific taxa in New Zealand within Juncus effusus L.
CategoryNumber
Exotic: Fully Naturalised2
Total2
 Bibliography
Edgar, E. 1964: The leafless species of Juncus in New Zealand. New Zealand Journal of Botany 2: 177–204.
Howell, C. 2008: Consolidated list of environmental weeds in New Zealand. DOC Research & Development Series 292: 42.
Kirschner, J. 2002: Juncaceae 3: Juncus subg. Agathryon. In: Orchard, A.E. (ed.) Species Plantarum: Flora of the World. 8. ABRS, Canberra.
Linnaeus, C. 1753: Species Plantarum. Impensis Laurentii Salvii, Stockholm.
Muasya, A.M.; Simpson, D.A. 2002: A monograph of the genus Isolepis R.Br. (Cyperaceae). Kew Bulletin 57(2): 257–362.
Weeds Key – interactive key to the weed species of New Zealand