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Electronic Flora of South Australia species Fact Sheet

Family: Juncaceae
Juncus usitatus

Citation: L. Johnson, Contr. N.S.W. natn. Herb. 3:241 (1963).

Synonymy: J. polyanthemos sensu J. Black, Fl. S. Aust. 183 (1943), partly.

Common name: Common rush.

Description:
Perennial; stems arising from a rhizome, usually 35-120 cm high and 0.75-2 mm diam., green, with an interrupted pith; stem striations 25-40; leaf-blades 0.

Inflorescence a rather loose lateral panicle; flowers pale; perianth-segments 1.3-2 mm long, subacute; stamens 3.

Capsule much longer than the perianth, ellipsoid.

Distribution:  Grows in damp places.

S.Aust.: MU, SL, SE.   W.Aust. (probably introduced); Qld; N.S.W.; Vic.   New Zealand and New Caledonia.

Conservation status: native

Flowering time: mainly in summer.


SA Distribution Map based
on current data relating to
specimens held in the
State Herbarium of South Australia

Biology: Very sporadic in S.Aust., the occurrences more or less isolated from the main area of the species in eastern Australia. It may be introduced in the State. Belongs to Section Genuini; see note to J. paucifiorus. J. polyanthemos, with which the species has been previously confused, does not occur in S.Aust. J. revolutus R. Br. This species was included by Black (1943) but no collection is known and it is unlikely to occur in S.Aust.

Author: Not yet available


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