Blotiella coursii

Description

It is a variable species with several ecotypes,some of which are distinct subspecies.The stems can grow to 40 cm (occasionally 80 cm) in height but are often much smaller.Some forms have prostrate stems that creep along the ground while other forms grow more erect.The stems are dark blue-green,slender and rough to the touch.They may be unbranched or have branches growing from the base.The stem nodes are covered with a sheath that is marked with a black band and has dark teeth with white edges.The stems are tipped with a small cone,3-4 mm across,which is usually green with a black,bluntly-pointed tip.