Photos: Ballyvourney, Co.Cork
Two-spined Pirri-pirri-bur / Two-spined Acaena
Round heads of petal-less flowers followed by burrs with 2 barbed spines.
Bright-green leaves with (usually) 9 leaflets, narrow oblong-oval.
Stems woody at base, hairy. Prostrate, rooting, mat-forming.
Occasional garden escape. Found in woodland and on paths.
Can be invasive.
Identification: Paul Green, Co.Wexford.