Marlborough rock daisy (Pachystegia minor) belongs to the Asteraceae (the Aster family). It is an evergreen shrub that is endemic to the north-eastern South Island of New Zealand. This shrub grows in dry rocky or stony sites, rock faces and slopes, and up to a height of 1 m. Leaves are elliptic, leathery, and with a blunt tip. The flower heads are white, about 3.5 cm in diameter, and bloom from December to February. Fruiting occurs from February to April.