Article from Bean's Trees and Shrubs Hardy in the British Isles
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'Muehlenbeckia ephedroides' from the website Trees and Shrubs Online (treesandshrubsonline.
A deciduous shrub of prostrate sprawling habit, forming a thicket of slender stems which are rush-like the first year, deeply grooved and without down. Leaves linear to halberd-shaped, 1⁄3 to 1 in. long, 1⁄16 to 1⁄6 in. wide, glabrous, usually inconspicuous or even absent. Flowers small, mostly unisexual, produced from the leaf-axils in short spikes of few-flowered clusters; on the spikes the flowers are predominantly of one sex but often have a few flowers of the other sex mixed with them; they have no beauty. The fruit is black, triangular in cross-section, about 1⁄8 in. long, subtended by the persisting, more or less succulent perianth.
Native of the North and South Islands of New Zealand. Perhaps not in cultivation.
Synonyms
M. muricatula Col