Photographs: The Gearagh, Co. Cork

Branched Bur-reed Sparganium erectum Rísheisc Family: Sparginaceae Flowering time: June-August. Aquatic perennial. Native. Flowerheads are green and spherical, in branched racemes with male flower-heads are above and female flower-heads below. The erect stem leaves are hairless and keeled at the base. In deep, fast-flowing water narrow submerged or floating leaves may develop. Height: 50-150 cm Found in still and moving freshwater with a mud substrate. Similar: Unbranched Bur-reed, Sparganium emersum

Branched Bur-reed, Sparganium erectum, Rísheisc