Thread Rush

Description

Juncus effusus--is a clump-forming perennial that spreads by both short rhizomes and seed. The clumping plant manifests stout but supple stems that may reach 1.5m (5 feet) in height. The stems are smooth cylinders with light pith filling. The lower leaves are reduced to a brown sheath at the bottom of the stem. The yellowish inflorescence appears to emerge from one side of the stem about 20cm (8 inch) from the top. In fact the stem ends there; the top part is the bract, that continues with only a slight colour-band marking it from the stem.-Juncus effusus-has 30 to 40 ridges on the stem. Seed production is extremely high with each shoot capable of producing 8,500 seeds per year.