Junceae
A natural order, containing about 130 species of perennial, rarely annual, herbs, principally natives of temperate and Arctic regions. Flowers green or brown, in axillary or terminal cymes, regular, hermaphrodite or dioecious, bracteolate; perianth inferior, scarious or coriaceous, the six segments in two series, the inner series sometimes petaloid, sometimes both series large and coloured; stamens six, rarely three only. Leaves slender, flat or terete, or reduced to sheathing scales. Stems erect, usually simple, sometimes septate within; pith often thick, continuous or interrupted. There are fourteen genera; Juncus and Luzula represent the order in the British Flora. The more important of the exotic genera are: Calectasia, Kingia, Xanthorrhoea, and Xerotes.