Purple Moor-grass

Molinia caerulea (purple moor-grass) is a species of flowering plant in the grass family Poaceae, native to Europe, west Asia, and north Africa. It grows in locations from the lowlands up to 2,300 m (7,546 ft) in the Alps. Like most grasses, it grows best in acid soils, ideally pH values of between 3.5 and 5, however, it can continue to live under more extreme conditions, sometimes to as low as 2. It is common on moist heathland, bogs and moorland throughout Britain. Introduced populations exist in northeastern and northwestern North America.

Identification

Molinia caerulea is an herbaceous perennial bunchgrass (tussock-forming), growing up to 90 cm (35 in) tall (taller when sheltered by gorse and heather), with many closely packed stems. The leaves are coarse, green, taper to a point, long, flat and sometimes slightly hairy on top.[4] Due to the dense tussock it is very resistant to heath fires. Its ligule is a ring of hairs, as in heath grass (Danthonia decumbens). The long narrow purple spikelets are a major identification feature - the panicle is 15 cm (6 in) long.

It flowers between July and September, later than any other species.